I've shot the 04 Duallys, and own 03 Duallys. I'd say on the Patriot the valley is pretty much the same as last year. The cams are a little smoother, and easier to pull back. To me, it feels like they start to stack weight sooner, but the draw force curve is flatter. The break over into the valley is also lessened. Until I get my 04 P40 Dually shot in and tuned, I really can't comment on the wall. I didn't notice a big difference on the Patriot, re: wall. But I didn't shoot them side by side. After shooting both, I'm undecided on the grip. The 04 grip has more heel to it. I like both grips, just not enough time with the 04 to decide at this point. I think given the other improvements (pivoting limb pockets, bearings, new riser, etc), the 04 is a better version of a very good bow. Here's my P40.