Alright guys (& gals), I want your opinion. I'm thinking about switching from the GT's to the new Beman MFX classics. I shoot an Acadian Woods 3 piece treestick, about 50#. My thinking is that the MFX's are smaller in diameter, and will be a little faster, and give me a little better penetration. In physical weight, they are very comprable to the GT's. I'll probably be shooting a Simmons Interceptor (190 grain) or a Landshark (190 grain). Anyone have any experience w/these two shafts and if so, which do you prefer? Also, does anyone know the actual arrow diameter of a Beman MFX classic 500? Thanks.