Well I went out tonight and the kill light 100 on the head worked fine. Didn't flop around, stayed put and did it's job. Unfortunately my son had car trouble and I had to pack up half way through my first set so limited usage. I definitely am going to have to use a halo shield on the 250 mounted to the .223 it was lighting up the end of the barrel. luckily I checked before I left the house and made a quickie out of Gorilla Tape worked pretty good in a pinch. Don't think I'll be needing one for the 100 on the head though, that seemed to work fine. I could definitely light the edges of fields out to about 80-100 yards with the 100 so I think it will be fine to use for scanning, should be able to pick up eyes easy enough. The biggest plus was going out in the field with no wires. All in all I think this setup will work fine for me at least. It will take some tinkering and fine tuning but I always seem to be tinkering with thinks anyhow so that's nothing new for me.