One of the 4 bowl gouges I have, which came in one of those beginner sets years ago, has a V-shaped flute, and the darned thing just looks dangerous to me. What can you tell me about the usefulness (or not) of this type of bowl gouge, when it should or shouldn't be used? I'm treading water on the bowls right now (watch for another "help me" thread later), but though I could get some info on this topic anyway. Thanks!