First of all it sounds like you are reading way too much into this. Jelqing is very basic, here is an abstract on it from T's Place:
Jelq Basics
Jelqing (also known as milking) is an exercise designed to force large amounts of blood through the penis, increasing the internal pressure and creating controlled damage or micro-tears in the structure of the penis. This damage will be mostly repaired overnight but overworking or not taking rest days will reduce efficacy. The effects can be to increase length or girth or a combination of the two.
The exercise consists of applying an OK style thumb and forefinger grip encircling the base of the lubricated partially erect penis, restricting blood flow, and pulling this grip forward toward the glans. Once one hand has reached the glans the same grip and motion is applied with the second hand. This process is repeated for a number of strokes in a continuous milking motion. Each stroke should take no less than three seconds.
It is important that jelqing is proceeded with and followed by a warm wrap, to relax the tissues and minimize chances of injury.
Step By Step Jelqing
Apply OK grip at base with first hand
stroke forward toward the glans
Apply OK grip with second hand and release first hand
stroke forward toward the glans
Apply OK grip at base with first hand and release second hand
Repeat from 2 to 5
References
Top
Jelq Constituents
Jelqing is, on the face of it, simple but it can take a while to master the intricacies of the exercise and improvements will be made many months after starting. Initially your penis will need to become accustomed to the pressure levels and so you should aim to build the intensity and duration of the exercise over time. This will allow for the blood supply to the penis to develop and the tissues to become used to the exercise.
Erection Level
The level of erection is important. If you Jelq with too low an erection level or allow your erection to subside for too long before correction, the pressure during the progression of each stroke will vary greatly. The start of the stroke will be low pressure and the end of the stroke will be a much higher pressure. This will encourage more girth development toward the glans and eventually result in a baseball bat shape developing.
The minimum erection level you should allow is 40%-50%. In general, the greater the erection, the more effect on girth. Likewise, the lower the erection, the more effect on length. That said, some gain length easily and others only find girth increases. Jelqing with erections higher than 80% should be avoided initially.
Grip
The grip can be applied in many ways. However it is applied, there are some important common factors.
Grip Factors
Strength - Matching strength and diameter of the grip to erection level to avoid changing pressure as a stroke progresses.
Consistency - The grip should be consistent throughout the stroke. It is easy to subconsciously increase or rotate the grip part way through a stroke.
Starting at the base - The grip should be attached as low down as possible
The standard OK grip can be applied in two ways, palms up (a standard OK) and palms down (an overhand OK). Though the grip is generally referred to as an OK grip there is no requirement for the forefinger and thumb to meet, what is important is that it traps blood effectively. To that end if it works to grip the end of the forefinger with the thumb or to use thumb and forefinger in a U shaped grip it is important to proceed with what works best. A U shaped (pinch grip) applied vertically will tend to work the corpora carvenosa (CC) most, encouraging girth gains.
If there is no intention to attempt bend correction the grip should be applied straight. If gentle work to help correct a bend is required then the grip can be applied diagonally with the leading edge of the grip on the inside of the bend. Do not expect dramatic correction, this is a gradual and limited process.
The effects of jelqing are a combination of stretching and internal pressure. If stretching and length are important application of a grip that less effectively traps blood but is stronger is sensible. This can be achieved with rotation of the grip at the point of application. Also if the first grip becomes a short stretch at the glans whilst the second grip is applied this is likely to have positive length effects.
Care should be taken to avoid damaging the dorsal nerve which runs along the top of the penis in the middle. There is a particularly sensitive nerve bundle in the top middle of the penis just below the glans and this should be avoided, either by terminating the stroke an inch before the glans or avoiding the area with a grip biased to sideways pressure. An overhand OK, locating the webbing between thumb and forefinger centrally is likely to be least likely to cause nerve damage and can fairly safely allow the stroke to be continued all the way to the glans.
To ensure that the entire penis is worked out thoroughly the grip should be varied during the course of a session. Mixing up overhand and standard OK grips and changing rotation of the grip at the point of application is a good habit to gain.
Its best to work up to full intensity. Even with a good warm wrap, a lot of spotting can be avoided by applying a low intensity grip initially and building it up during the first minute or so.
Angle and Position
An upward angle (penis pointing up toward the ceiling) will put most of the stretching gain into the tunica which is harder to stretch than the ligaments, so it can be used to try and minimize length gains (in combination with high level erections). An upward angle is associate with a standard OK grip. It is harder to grip close to the base using this angle.
A downward angle (penis pointing toward the floor) will place more strain on the ligaments. Its generally associated with an overhand OK grip and many people find it easier to both achieve a grip nearer the base and a greater pump effect from each stroke.
With a standard OK, stroking with the right hand whilst pulling the shaft to the left, and with the left hand pulling to the right, will apply stretch to the ligaments on one side at a time benefiting length. Pulling in the same direction as the hand in use with an overhand OK will have similar effects.
Some find that jelqing whilst standing increases the initial pressure of blood in the penis and thus the effectiveness. Similarly jelqing in a sitting position with the legs raised above the level of the penis should help. This will also encourage a slumped back which will allow easier access to the base of the penis and increase the downward angle when jelqing down.
Stroke
The speed of each stroke is extremely important. Stroke times of less than 3 seconds should be avoided. It is very easy to start at a good rate but increase to masturbation speeds if concentration is lost. Timing the stroke rate (either by counting ( one - one thousand, two - one thousand, three - one thousand) or with a watch or metronome is a good way to ensure that the speed is constant.
It is possible to increase the strength of the grip without encouraging a ramping of pressure during the stroke by lengthening the stroke time.