Thanks for trying that test, Mike. If you aren't happy with it in a White - I'm not even going to try it.
It would not surprise me so terribly much to see Hodgdon counter with a superior powder that will actually function properly in most any muzzleloader. Then, I think, we might truly have the best damned powder in muzzleloading. Maybe Western Powder should qualify that claim with "if you can get it to fire reliably and safely."