I buy cutrine at my local Tractor Supply. Catch it on sale for $29.99 a gallon every so often, usually runs around $35. Cheap, and readily available, no shipping needed. They also have the granular in the 12(?) lb units.

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.