Hi guys, just checking in I guess. Currently shooting a Wrench by Hrawk from the SSF and a Simple Shot Scout. I shoot the Scout with single 1745 tubes in a 6ft butterfly draw with 7/16" ammo. Awesome for hunting! However, I want MORE POWER!! I want to shoot 1/2" ammo but don't want to use bands. What tubes could anyone suggest for shooting 1/2" ammo in full butterfly? Thanks!