When feed off the small roaches I'll put a few in a cup. But when feeding off the adults I just grab them by the legs and hold til shot out of my hand. Dubia's will hide and stay put, til nightfall. So with no movement chameleons don't detect them.
Ok I just got 150 dubias in. This is my first time having them. I guess these guys are nocturnal. They don't look as bad when they are babies or juvi. I really hate roaches but I can suck it up since they are going to be food for my chams