Ok can someone plz explain the spine numbers and what they mean. What I believe I know is that the spine refers to how stiff the arrow is and what I thought I knew was that the lower the number the stiffer the spine.
What is the best spine for a 60-70 lb bow? I thought I had this figured out but it seems not all the arrow company's use the same numbering method?
Also what effect does the spine of the arrow have on your shot?
Right now I'm shooting ultralight x-cutters and they are lighter than my 7595's but have a stiffer spine. They ended up both shooting 280 fps.