Think most people don’t like to dedome the XP-E2 because the hotspot becomes too small. A lot of hunters are using aspheric lights, think one of the best is the Uniquefire UF1504, big head/lens and short body. Others with small heads would also work but will have less throw of course. The Uniqufire UF 1504 has a 30mm tube which will take 30mm scope rings. Most people mount a scope ring with a Weaver/picatinny base to the scope and then mount a scope ring with a Weaver/picatinny mount to the flashlight. This way the light can easily be removed. Here is a link to some info n10sivern did with the aspherics and the colored XP-E2’s. Think Kloepper Knife Works also did some XP-E2 testing in these aspherics.