Slim, not to pick on you or anything, but one statement stands out to me...
The bow is very accurate, however it seems to change windage overnight. I will shoot about 6-8'' groups at 65 yards one day and the next I will put that same group 6-8'' to the right or left of the center.
Unless your sight or rest is coming loose, this sounds more like an inconsistant form issue. I'll get a day or so like that where I hit more the left side or right side of my aiming point and its almost always me getting lazy on form.
On the bow note you have quite a handful of good bows there. My advice would be to shoot them all until you find which feels best to you. I personally shoot an Xtec and really like it. Being that you're a finger shooter a longer ATA bow would be a better fit for you. The Xtec is 35 1/2" ATA. You may want to take a look at either the ProTec or the UltraTec if you're looking for more added length.
Oh, and don't foget brace height. The Xtec, Ultratec, and the Protec are 7"+ in the catagory too.
Don't get hung up on one brand though. Bowtech is coming up with a lineup that has a couple bows in it that would do you nicely as well.
Be patient and shop around, shoot em all, then decide.