I like APP i switched to it and have used about 5 pounds.The sticks work well for me as does the loose. I measure my own if it comes to tight groups you can make a differance by using a balance scale. I reload and have had digital scales drift up to a grain + or - so I would say stick with a balance scale they are cheaper and more accurate.
A lot of people seem to like 3F I have had better results with 2 F I like my volicity at 2000+ and with those kind of loads you need 2F to keep the pressure down and still get tight groups.
When I check to see what I got by volium measure I found the best I could do was + or- 2 grains; thats a 4 grain differance which is enough to move impact point up and down some,maybe even affect the barrel whip.
My thoughts at this Point, I am testing Gold now and the only differance I have found so far is color and price. Lee