WhatIsPie?
Smash Apprentice
I've killed metaknights at 130% with the Fthrow. Might be lower, i'm not too sure. And this was from the edge of final D.I'm actually not sure how strong the Fthrow is in terms of knockback. I regularly use it in my grab game/combo game, so I'm sure it gets weakened through repeated use. I do recall throwing people off the screen with Bthrow, but never with Fthrow. Maybe Fthrow can, but I just don't save it. I'd go test this now, but I do not have access to my Wii.
In any case, I think most people use the Fthrow for chaingrabbing purposes, and dash attack comboing afterwards sometimes... Dthrow-> Uair combo, but not so much Back-throw. Its just what I've reserved that move for, I suppose. Though if someone can tell me about good set-ups/combos with the Back Throw, I'd be glad to try it too.
BTW, what is ART? Anyone care to explain? X_X