"IF I MAKE THIS CHANGE, HOW MUCH IMPROVEMENT AM I GUARANTEED WILL BE INSTANTLY ADDED TO MY ACCURACY LEVEL WITH THE SAME AMOUNT OF EFFORT ON MY PART?"

That's a quote I got from Bob Ragsdale. I find myself using that many times when I think about tinkering with my setup. I don't think there's anything wrong with trying out new products, especially if the current item isn't working at all for you. There does come a point where one can get over-obsessive though. Last year, I overhauled my bow completely. I replaced: strings, cables, rest, sights, arrows and quiver. Felt like I had a new bow.

-Mike