Because the granulation of the loose FFgis so coarse, Iwouldn't use any APP besides theFFFg.

I noticed that the tables didn't list the APP FFFg at all.
FWIW, it's probably more potent and consistent than FFgtoo.

Does your rifle have the Knight Power Stem for a more efficient powder burn?

http://www.knightrifles.com/productDetail.aspx?id=900042