I just ordered the razortec myself but, one of the pro's at a shop I have used for many years shoots the ultratec competatively as does his son. Both tell me it is a much more accurate bow for several reasons, one being the longer a to a length. I shot his and it was terrific but I chose the razortec for its manuverabiliy when hunting. I believe you can't go wrong with either, or any of the other hoyts. I've shot them all in the last couple of weeks and they really are tremendosly smooth.
Good luck, i know my decision was tough.