I have these bulbs in my Dredd Dead World and in my Black Rose in the back ship subway they are cool.
I have a No Fear that has full LED's except for the eyes I like the standard look of the incandescent bulb. I don't think the eye len's are dark enough to defuse the flame led in the eye's but I can try them tomorrow night and post some pics after to see what they look like.
Side note I actually put these Flame LED's down for the TWIPY awards as best mod I was drawing a blank and these bulbs where all I could think of.