sndmn11
"DADDY"
Take the GT .246 aluminum insert. It's almost 3" long and 50 gr. It should weaken the shaft because it's heavier, but it will actually stiffen the shaft reaction as opposed to the lighter standard insert.
I shot a recurve from 2005ish to 2016, so about when brass inserts were becoming prevalent. It took oodles of TradGangers years and years to think about this concept and years more to accept it.