I'm getting a Pse Drive on trade tomorrow, it has 60# limbs. It will be set at 30" DL & max DW. Do y'all think that a 340 spine will be to stiff? I just picked up 2 dozen Easton Nemesis in 340 spine & with a 125gr tip they weigh 460gr. I would like to shot these that way I want have to buy any 400 spine arrows. Also y'all think that 460gr is a little heavy for a 60# bow that ibo's at 326?