Never used the original hot melt on anything but wood, so I can't really compare the blue vs. the original. I have used the blue on carbons though (GT Trads) with brass inserts and had good luck with it. Using an insert tool, I heated the insert just enough that it would melt the glue when touched / rubbed against it and immediately inserted into shaft with a twisting motion to spread glue evenly. Then place in a glass of room temerature water to cure the glue as per the instuctions. I believe the instructions said to wipe off excess before placing in water, I did it after curing. Have shot the arrows into "block" targets, my target bag, and "boat dock" foam targets without any problems. To remove, I used the same insert tool, heated the shaft of the tool while pulling lightly against the insert. As soon as I feel a little give the insert slides right out. I've gone through this process several times with the same batch of arrows while tuning with no visible damage to the shafts and they're still holding well. All that being said, if you want something more permenant, I really like the Loc Tite Ultra Gel in the black bottle. It is a rubberized formula which has worked well for me and it's available just about anywhere from Wal Mart, to Lowe's, to Home Depot.