LC, I find that it does work whenever I would normally search for a beetle. I used to fish the Crackleback quite a bit in those situations...but this has replaced that for me. Last season I was able to get on Spring Creek in State College PA. A stream that tends to be difficult at times. I swear that every fish I found feeding came up for it. In gin-clear water too. The ease of tying is a big factor for me as well. My only complaint, is that in low light it's hard to pick up.

Ralph