I was at my local archery shop today and I shot one of their leftover Tribute bows. It felt very nice. They also had an '07 Allegiance there that felt very nice as well, but unfortunately it wasn't setup to shoot and I didn't have time to stick around. Anyways, I was wondering what the difference is in the different years of the Allegiance bows? I don't know what year they came out. Are there any changes between the years, and is one year better than another as far as advancements go? Thanks!!