If you're happy with the bows you have now, I wouldn't get rid of any of them, but if you buy new bows, you should buy them 3 under, if that's the way you're going to shoot. Bowyers tiller them differently for a reason, and generally bows that are shot the same way they are tillered are quieter. Most of the bows I had shot just fine when I switched, but there were a few that had issues, like really high nock points, and I eventually ended up selling them.