Sadly only 4-point rip, 5-point rip, and the 2 different ranks of Ferocious bite at 5 points...see the link I posted earliar. Heres some numbers based off of ideal feral gear (atiesh etc), buffed to obscene levels on alliance side with onyxia buff off that calculator:Has anyone actually done some calcs on 4-point versus 5-point FB recently assuming raid-buffed crit numbers? 36-39% crit is fairly standard for a fully buffed feral druid. You are approaching 2/5 probability of loosing a combo point if you shred agian on a 4-point stack. That equates to (ROUGHLY!!!) 2/5*300 damage loose over a long duration. Given that, it actually seems rather close either way. Hmm...

2779 AP

45.8% crit

5% to hit

and using Rune of Meta

vs

Lvl 63 mob with

8.6% miss

8.6% dodge

10% armor reduction

Shred -> 5 point rip: 677.11

Shred -> 4 point rip: 677.97

Shred -> 5 point rip -> shift: 736-807.7

Shred -> 4 point rip -> shift: 753.99-849.35 dps (note dps is inflated because you shift more frequently with 4 points after a combo)

Shred -> 5 point FB (rank 5): 689.26

Shred -> 5 point FB (rank 5) -> shift: 751.56-819.25

Edit: These calculations include Omen procs, so are a little bit higher than what Tang's model would show