Tom, Which SA8 do you have? SA8 Plus(the, now discontinued, with PO4) or the SA8 Sensitive? Both use a green scoop and 1/4 cup dosing. Or the Bioquest, with a blue scoop and 1/8 cup dosing? The Bioquest is the lowest sudsing of the lot and rinses the best. Sensitive is highest, I couldn't use it, even in my old Frigidaire from 2000. Plus is somewhere in between, but you need to use a half of a green scoop.
David, Tri-zyme is an enzyme product much like the old Biz. It also contains OBA's and is quite effective at removing protein stainaand heavy soiling, you can use it as a presoak or a detergent booster. All Fabric Bleach is a very high concentration sodium percarbonate bleach.
I've used these products since 1996 in 3 machines, a TL and 2 FL, one of which was a Frigidaire. I never had a sudsing issue in the Frigidaire, using 1 scoop for a full, normal load. I don't do that in my Bosch, though, some loads it does suds a bit much sometimes, esp with towels, so use a 1/2 to 3/4 scoop. Though, it rinses away quickly, like the Henkel products do.
Because of the same political reasons Shane cites, I chose not to use these products for the last couple of years and after a great customer service experience with my 8 year old water filtre, I've decided to selectively use the products again. The laundry system really is the best available in the US.