Mitty, does Universal actually burn cleaner than Unique? I've never used it.
I have not had that much Unique to play with. With what I have tried it seams Universal is a slight bit cleaner at lower velocities.
May I note that although, people say they are the same. Once I hit magnum levels, I have had the experience of Unique taking about 3 % less powder and favoring a little tighter OAL, and maybe even burning cleaner than the Universal.
However mind you these opinions come with a very limited amount of use with the Unique, while tying to clone some of my Universal loads.
Only reason I chose H-Universal over Unique, is that I can grab a jug, off the shelf, down the street as compared to driving miles, or mail ordering.