They are hot, I'll give you that. Was there a spot on your body that wasnt hot?
I tried the Alta's, they move around on my legs pretty good, so I kept tightening the straps, eventually they were really digging into the back of my legs, but still moving around. The only ones I've had that don't wander much are the issue knee pads. Yep, they're sweaty, but they're on your knee cap when you drop.