I, too, am a convert. I have run everything out there thru my Omega and WITHOUT a doubt, BlackMag3 is the best by far. NO crud ring like Pyrodex and others and accuracy is all 'center ring'.
I also shoot a Navy .36 B&C and use BlackMag3 with great success.
From all the posts I have read, it appears that guys with those 'other brand' weapons do not have the success we T/C Omega shooters have. No conversion of the primer or cutting of the barrel is needed, just load and shoot.
So for me: give me a T/C Omega and BlackMag3.
Of course, this is only MY opinion.
Cuz