You don't -have- to wear one to see gains, people gained for centuries without wraps and sleeves .. it's just that you'll see gains considerably faster, and if it's pretty easy anyway then we'd be crazy not to do it.
An [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]extender[/words] isn't technically an anti-turtle device. Anti-turtle sleeves and wraps just (sortof) keep you from retracting..
A stretcher actually uses
traction to stretch you using force to cause additional length gains during healing. (I know you know that
just being complete)
They're better with lots of time .. rather than lots of force/poundage. The original medical stretchers topped out at around two pounds of force. That doesn't seem like much compared to many PE exercises, but when you're new to it, after an hour or two of this 'light'
weight it can feel like it's pulling your dick off.
That burning sensation is cellular activity .. your cellular voltages
double from their normal range up into the healing range. (From about -23mV
up to -50mV ... unless you're very sick systemically and can't generate the right voltage changes.) Bashing your thumb or recovering from a sunburn can give you the analogy of the 'itching' feeling often involved in healing/remodeling.
BTW, another (also superior) way to do anti-turtling is to use a type of cock ringing to expand the tissues -- in both the length
and girth directions -- with a light constriction. I repeat the word
light, as in easy or barely. That's the trick. Try wrapping some cushioning material around your base .. leave enough overlapping material that it won't accidentally separate when you're not looking, (a short length of silicone
sleeve about 2 inches long and cut open so it becomes a flat wrap .. is really great for this) then secure the wrap with one or two Scunci ponytail bands. (such as
This or
This or
This) .. these can be tied in a knot at the top to make them smaller/tighter, but only tie them as much as you need to make them not be loose ... you don't need very much force for this and is using a silicone wrap for the cushioning the wrap itself is going to be doing a lot of the work .. with the Scunci just kinda holding it in place. If you use a
light force at this it can stay on and work for a looong time.
If you use too much force, you can cut off too much circulation and hurt yourself really bad. Always pay attention to the feel and the penis color while doing any PE exercise, if it doesn't look right then take it off and make another scunci with less force while you're taking a break. For me, one scunci is plenty because the silicone wrap itself is doing the work too.
-Normal wrap anti-turtling can help you grow because the healing is done in a kindof lengthened state .. but while compressed somewhat vs girth gains IMO..
-Stretchers can help you grow length because they're pulling on you with force to cause additive remodeling in that direction. You'll get 'free' additional length the fastest with this and/or with
hanging ... but bear in mind to use a light poundage because this is Healing .. not another Workout.
-Light Constriction anti-turtling as described above with a Base-wrapped Constrictor can help you grow in
both the length
and girth directions because the tissues are expanded above normal in every direction, .. (vs normal wrapping where they're longer than turtled, but still a bit shorter than normal .. plus compressed in the girth direction.)