The main reason only just a handful of us have actually used them on game is that they just were not available until late 2005. Too late for most of us to come to any conclusions concerning accuracy/poi etc. This will be the first season for most to get a chance to use them.
I definitely WILL be using the 250gr Bonded Shockwaves this fall! Accuracy differences, if any, are impossible to tell unless one tries them. They shoot plenty good in everything I have. The 250gr Bonded shoot BETTER in my ULA and slightly less so in my stainless 10ML-II but still less than 1.5 inches. The 300gr variety shoot great in both my ULA AND blue/synthetic 10ML-II. Only you and your gun can determine how they shoot.
I have always found the SST/Shockwaves to be a little on the fragile side but have certainly never lost an animal due to that fact. Typically when I find a 250gr SST/Shockwave it is in at least two pieces, core and jacket. I WELCOME the improvement and look foward to seeing how they perform on whitetail!