i'm on my first cycle right now and i'm using 22 guage......they are smooth and painless if you know what your doing........25's are talked about on here a lot but 22's are quicker and no more painful than 25's..............use 1 1/2'' on your glutes and 1'' on your quads........i am so damn scared of needles but now that i'm using, it isn't shit.......actually tonight i gave my buddy a shot and it wasn't anything.......about 3 monthes ago i was one of those guys looking for Oral cycles only because i was so scared of needles
good luck, hope all goes well