RE: need help with carbons
This may sound crazy, but I use silicon. take the tip off and take the nock out and shoot the silicon right down the shaft until its full completely. It adds weight but doesn't change the spine, all my arrows fly great after doing it. I am pulling 56-57lbs and my arrows with inserts knocks tips weight in at around the high 300grns after putting the silicon in them they jumped up to the low 500's and I noticed a dramaticdecrease in bow noise, arrows are slower but speed doesn't kill even when I shot compound I hatedall therage about speed. The weight tubes are good but they only come in 1 or 2gpi so if you are like me and have 31" arrows the most you will add with the tubes is 62gpi to your arrows if thats enough then go with the tubes.