I have a questions for any bow tweakers on the site. I have an insanity CPX, love the draw on it and it shoots awesome. I've had the bow for going on three years now. Bummer thing I've noticed is that I lost about 12 fps between year 1 and 2. Just put new Vapor Trail VTX strings on with bBwjax string sleeves instead of speed nocks (awesome Bowjax product BTW) and once the bow was in spec, I had no speed change. Didn't expect to with just a string change but the bows was out 3/16" on ATA and was hoping that brining it back into spec would fix it. You know, increasing the preload and all. I don't have a scale to measure the draw weight and Bowtech just says to take it to a dealer. I'm thinking it is limb relaxation. Thus I would have to shorten the ATA below spec to get the 70 lb draw weight back. As you all know in long range bow hunting, 12 fps is a big difference. Any thoughts before I contact bowtech again?