I own the regular Z7 and am EXTREMELY satisfied. I don't have any complaints. Quiet, smooth, FAST, and not tough on the shoulders. The only problem I see with the extreme is that you can't record a buck in the Record book if you kill one. The bow is too short. Check the regulations on axle to axle length. We don't always think of that, but you may be lucky and kill a Record Book buck and won't be able to put it in the books.