Jelquing requires a major commitment of TIME and PATIENCE. With NO quarantee, none. People cliam they have had great results. I tried it last year for 6 months, my cock got alittle puffier when limp, but stretched right out when erect.
I've read MANY responses about jelquing and those that had even minimal amount of growth stated YEARS of exercises. For 1/4" - 1/2" ? i have better things to do with my time.
As long as I can get erections and have the opportunity to have sex, I'm ready to go. When I'm ready to cum, that extra 1/4 - 1/2 " means nothing.