Actually ....... Currently APP is the only powder I shoot. Some years back, APP was a royal nuisance. Full of an annoying light grey dust. It seems more recent manufacture has been vastly improved. It's a different color with WAY less dust. For suppositories, I load exclusively on a pair of Dillon 650s. I have no trouble with the powder measures ....... Caveat: I have no trouble with the powder measures as long as I clean the powder bar and mortice after each loading session. That takes about 2 minutes. 3f meters better than 2f.
Shotgun is APP 2f. I shoot All Brass Magtech 12Ga hulls. For shotgun I use a scoop. Scoop - dump, scoop - dump, scoop - dump > repeat as necessary.
I use absolutely NO lubes on bullets nor in my Cap Guns.
When they say cleans up with plain water, they don't lie. After a match, I clean up inna shop sink with warm water (optional) and squirt of Dawn dish soap (also optional). The only Caveat I have here, is clean your guns after the match. If your in low humidity, you can delay a couple of days. If your in higher humidity, same day. Cleaning with APP is no more troublesome than with BP. For the shotgun, I just squirt the barrels with glass cleaner and shove a patch thru. Follow with a dry patch, follow with an oily patch. done.
Soak my cases in water, cut about 25% with white Vinegar. Soak 15 - 30 minutes, rinse, dry, tumble (45 minutes) done. I really like APP.
To date I haven't had the chance to try "Premium." I still have 2 cases from 2 season ago to shoot through. Oh, after cleaning and re-assembly I still wipe the guns down with an oily rag. I don't get any rust.
Coffinmaker