To remove the fletching from carbon shafts i use a stripping tool that you can get pretty cheap from any archery store. Like already mentioned a dull knife will do fine also. To remove the glue i use denatured alcohol that you can get from most hardware stores. The acetone will work but if you rub very hard it will remove the color from your shaft and anything else you rub it on, thats stuffs strong. I use the acetone from time to time on stubborn shafts but i use very little and rub gently.