Well, last night I tried aluminum-backed tape. It worked just fine in either white hot or black. The only issue I noticed was the crosshair color will have to be changed, and that's no big deal. On white hot I have a black reticle and on black hot a white reticle. The aluminum gives the same color as the crosshair so I will change it for sighting, then change back for hunting. The tape is quick and easy.
As indicated in this thread, there's many ways to go about it. It's good to hear what everyone is doing.
