I like the high F.O.C. (front of center) arrows. With the brass inserts. I believe 110gr. But I shoot 100gr. mechanicals. May also work well with the lighter 100gr. fixed blades. The 125gr. may also group better as it will raise the FOC of the arrow by 25gr. I shoot the GT Lazer II's with the higher f.o.c. brass insert and aluminum caps vs. aluminum inserts w/ plastic caps. You could also try out the 150gr Boltcutters. Someone else should chime in here.