What's the sweat level like in the gym using these?
I used a DCP/HEAT stack once and it was insane! I work out at 0500 in the morning and there's no serious lifters other than myself in the gym. The gym has an awesome pump room and there's no waiting for equipment - but the rest of the gym is geared toward the "yuppy" crowd who like machines, water aerobics, yoga ... etc.
So there's a lot of old ladies in the gym in the morning and I could tell they were terrified of me as they walked by the squat rack to their yoga class holding their little rubber mats. Sweat all dripping off me ... and grunting while trying to squat 400lbs. They thought I was a prison escape or something.
I really was a sweating mass of terror on that DCP/HEAT.
As far as the old ladies - I like to smile at them wink at them - like I'm interested in them or something. I know this must terrify them more!