Just saw this thread. If it is me the OP is referring to, then it should be noted that I never bend my penis when it is fully erect. And I always try to "feel" if the bend is too strong or not. I mean, it is okay if it hurts in a stretchy kind of way (don't overdo it though!), but there should be no real pain what so ever. So use common sense and take care of your members.
I am starting up on my bending routine again. As before I wont have a real schedual, but just do it as often as I can, while still keeping the wang safe and healthy. I supplement with clamping for larger head and girth. Someone said that excersize slows lenghtgrowth, and though I disagreed then, it seems true to me know. I have lost maybe 0.3 cm length, while gained appr. the same in girth. So combining intense lenghtening techs like the semierect bends with clamping might be counterproductive, but I'll give it a go.