I am shooting 70 #'s w/ Maxima 3D Select 350's....they tear perfect and fly perfect. The "charts" show I am a TAD underspined, but I sure don't notice it. I am pretty sure they weigh in at 8.9 gpi...

I have mine cut 28 1/2" (sorry, I posted 28 first), 100 grain tips, blazers and a 4" wrap, they weigh EXACTLY 380 grains.