Spine and FOC

[Coach Jones]

I am shooting 175 grain tips with 50 grain inserts.  To shoot Magnus Stingers and have the same weight I can switch to 100 grain inserts and shoot 125 grain broadheads.  Will switching  inserts have any effect on spine on my setup?

[joebuck]

Adding Weight outside the BOP will effect spine more than adding weight internally. So with that being said for your setup? 50 grains.  Go for it. I doubt it

[artifaker1]

Shouldn't be to bad; then you can always go to heavier tips if you want even more up front, or lighter. The 100 should be stronger too.