Need some insight on my arrow build

Been seeing lots about increasing arrow FOC and I am shooting Gold Tip Hunter XT 340 29" with just standard inserts and 100gr broadhead from a 27.5" 70lb Vertix. I am thinking i would like to get a little more weight up front but don't really want to buy all new arrows. Have any of you tried the thread-in adapters? (Yes, I know a 125gr broadhead will help)

I am killing deer with this set up but I don't seem to be getting the penetration I'd like.

Last edited by AlphaBuck101; 09/08/22 08:11 AM.