Yes, to get the proper balance point of the Arrow forward of center closer to the head. There used to be threaded inserts you could try before you buy all new practice and hunting heads to find out how it affects your arrow flight.
Also, will change your spine requirement, most likely to 400 with the heavier head, least ways it did for me.
I too started short light small vaned and fast only to end up the complete opposite for hunting, the speed thing is only good for 3D shooting in my estimation.
Longer arrow penetrates better, heavier arrow penetrates better, heavier broadhead busts bone better, long 5" feathers control flight better, only short-range flight is affected for drop, as range increases the heavy arrow retains speed better and will catch and pass the light arrow amid flight.
Long story short, everything improves for hunting... no guff.