Well I ran yellow stuff in my rally car and they were spot on, you can tell by looking at them they aren't resprayed pads as they are made of different material!
Worked ok from cold too, Mintex comp pads (can't remember the number now) I used to run did not work
at all until warm. I think it was these that also used to set fire to the rubber boots on the brake calipers, they stopped doing it once they were all burnt away though
I would say stay away from green stuff they are sh1te, no better than road pads.