The easiest thing to do on Sweepiness would be to make the limits inclusive from the bottom of Good (125) to the top of Fantastic (225).
Examples at the bottom of Good would be 138 Atk and 130 SpA with 50 Spe, which hits 125 on the BSR, and 116 Atk and 110 SpA with 60 Spe (Hits 125), and its 100 Atk and 95 SpA with 70 Spe. The first is probably too slow to be of use with Weak Armor, but it gives you an idea of the lower limit on power. If you want to make it a rounder number, go with 130. I really don't think we want to go any weaker than Good to fulfill the purpose of this CAP.
[17:53] <&Deck_Knight> If I Cite and Prune CiteandPrune's post, what does that make me?
[17:54] <Birkal> a citeandprune cite and prunner
[17:54] <%DHR> O_o lol
[17:54] <+Mos_Quitoxe> Cite and Prune doesn't do enough of either
[17:55] <+Mos_Quitoxe> can we make him change it or force him to pay damages
[17:55] <&Deck_Knight> It would be a lot easier for him to Cite and Prune if we made him a mod.
[17:56] <&Deck_Knight> I delegate this task to Birkal.
[17:57] <Birkal> >:|