I'm wondering exactly how much benefit haste rating has for kitty druids. On the one hand, it seems like 30% of the damage done is white damage (judging from me doing about 35% in solo, and I use mangle a lot more than shred there, if I'm wrong on end-game stats let me know), therefore a 10% increase in haste would only increase the damage output by 3%. Whereas things like crit chance affect all but rip, and hit chance affects every ability.
However, if haste rating does not affect the PPM scale (i.e. if I go from 1.0 to 0.91 attack speed, does the PPM scale down, too) then I may see more procs of OoC, which would help out my DPS by far.
Haste wasn't mentioned in the sticky at all (ctrl+f "haste" yielded no results on the first page) so I was just wondering.