Ok, you have me at a loss here. If you were to snag up, you'd lose the fly anyways if it was tied on a waddington or a traditional fly hook. So snagging up the hook and losing it would be no different. But, as mentioned, if you do damage your hook you can do a simple retie and be fishing that same fly again. I for one could care less if I lose them, since it's part of the game. Only problem is, you'll be using a few of those slip bobber stops if you want to change flies. Just suck it up and lose the fly already.