ECA stack is very good for cutting as long as your diet and cardio are right,ive used eph to cut and also before workouts on and off for several years.
It does give you whizz dick so jelqing is out of the question,you need to time your pe workouts around it, do your pe first thing on a morning then have your eph afterwards,or take your last eph tab at say 2pm then do your pe at 8pm
Also in some users it has an unusual effect while masterbating,you might start to ejaculated a few seconds before you feel your orgasm,strange when it happens you start to shoot your load then you have the feeling of coming.