I shot carbons for most of the year but went to a 2016 a few weeks ago. With the broadheads and broadhead adapters tip weight was 145 grains. It shoots well but every once in a while I got a bit of wag in the tail end. A 125 tip does not suffer from such but I do not want to switch broadheads.
I decided to try the broadhead adapters that 3Rivers sells for aluminum and carbon arrows to replace the threaded insert.
I got them today and with my Zwickey heads they weigh in within just a few grains lighter than the arrows with the 125 tips. Still shooting a 475 grain arrow but without the occassional tail wag.
I wish I would have tried these sooner.