Yes Hud, I have tried just about every light imaginable. If you look close at the pictures, you can see a LED light on my bow. It has a red lens. Also, a few our feeders have green lights on them. They work well for night time pigs.
As far as using wood arrows and reflective tape?, no, haven't done that. Wood arrows don't interest me that much. They are fun, but in reality, I'm out there to kill pigs and carbons are far more effective.
Pigs can be very difficult to make a quick kill on and even more difficult to get a blood trail. In a perfect world, my arrow would get stuck in the offside shoulder rather than making a pass through. The lighted nock would then give me a starting direction at least and thus facilitating recovery.
I have found all but one of my pigs where the arrow stayed in the pig for at least a short period of their retreat. It is fairly rare to have a blood trail within 10 yards of the impact. At least that has been my experience. I believe that our "fatty" pigs are similar to bears in that the fat will help to hold some of the blood in.
BigJIm