As usual, bigbulls you're right in my wheelhouse! I'm shooting 545 grs at 261 this year with my Commander, but just bought a Maxxis 35 to tinker with this winter, and I should get up around 272 fps or so with that rig. I've got a dozen of the new FMJ Dangerous Game arrows in 300 spine. They are 15.5 gpi, which i didn't realize, because the old FMJ 300's were 12.1, so we shall see how they work.