I’m planning on getting a new bow for next September. Currently am shooting a Hoyt Carbon RX1 turbo with black eagle rampage 300 spine. I can’t remember the name of the insert system but it’s like a 50gr insert with a 50gr outsert that get screwed in over the top with a set screw. With this I shoot a 100gr head which makes it 200grns up front. My total arrow weight with this is right around 490grns with theee fletch and wrap. The new bow I want will be a new prime in 80lbs. So I’m looking to bump up my arrow weight to 550-600. To do that I’m looking at Easton 5mm fmjs. The spine chart says I need something stiffer than 300. I’ve heard by putting more weight in the back of the arrow the spine gets stiffer. So would I be okay shooting a 300 spine at 80lbs and 29.5” draw if I had a lighted nock, three fletch, and wrap? Thanks!! Any other arrow suggestions??