Well, the burning sensation lets me know that something is happening in there.... like the tissues are stretching beyond their max.
I think these may be more effective than doing DLD bends while clamped. I've tried both, and still do DLD bends, but I think Horses get me the real pump. I did 7 sets of ten minutes last night and I think that's my limit. Anything more would just be damage I think. First I'll do a DLD bend (one up and one going down), then a full minute horse squeeze, then repeat.
Man, holding a Horse squeeze for a full minute while clamped is some toe-tappin' sensation, let me tell ya!!! But my shaft really blows up from it. Don't forget to hot wrap!
I'm gonna keep doing it this way... maybe every other day since it's so intense. My dick looks like it's been in a blender afterwards! Ha ha.