I think boiling or hot water does the job better, but I could be wrong, I havent had to remove any yet.
I thought the whole reason we used wraps was so that we didnt have to put knives to our precious carbon arrows?
Try the hot water method, you have nothing to lose, you wont ruin the arrow as long as the water doesnt melt it, (which Im sure it wont) and you're obviously trying to get rid of the fletchings, so who cares what happens to them. Even if they melted into little mounds of colored poo.....
If that doesnt work try a hair dryer, andas a last ditch efforta KNIFE. (((((scream)))) [:@][

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