I know this is more of a PE exercise, but I tried it last night in the gym as more of a general long-duration exercise, as my main ARC routes were occupied. My question is has anyone who has ever done these, albeit for PE or general endurance, gotten a more significant pump in their extensors??? I felt like I was getting more pumped on the anterior/extensor side of my arm, than the normal forearm pump. As a matter of fact, I barely got pumped in the traditional sense. my thought was maybe because of the angle of the wall, rungs, and wrist, the extensors get worked a bit more. I don't see this as necessarily a bad thing, as extensors need to be worked as well. Just curious.
I have done foot-on campusing, but I can't say I felt more pumped in my extensors. I was doing 30-move up-and-down foot-on ladders with roughly a minute of rest between sets, and usually by the 4th set my fingers were starting to open up. It's been a couple of months since I did it, but I don't remember it feeling any different than lapping long bouldering problems until I can't hold on anymore. I wonder why you feel more pumped in your extensors?