Turned up some odd numbers looking at Scale Factors tonight.
Using Simulation Craft my present scale factors with 511 haste are:
Scale Factors:
Boidhre Int=0.67 Spi=0.58 SP=1.65 Hit=2.36 Crit=1.26 Haste=1.37 Lag=0.00
Haste was much higher than I expected, so I ran a second simulation using Porom's
profile since he's much better geared than I but importantly is stacking less haste (410) (same glyphs as me, slightly different build, both of us are using 2T8/2T9)
Scale Factors:
Porom Int=0.61 Spi=0.55 SP=1.70 Hit=3.48 Crit=1.04 Haste=1.26 Lag=0.00
Somehow, haste scales worse for him at 410 Haste than for me at 511 Haste. His Crit is so much lower because he's got
far more crit than I do at 816 vs 536 so his Crit Scale factor makes sense but I can't see why his haste scaling factor is lower than mine, or why both are higher than Crit.
In the sample T8 characters done, Haste scales as one would expect given Arawethion's article but the above is quite different. My main reason for posting this is if the scale factors for the above are correct, are we thinking on the wrong lines in stacking crit after the haste soft cap? Intuitively it makes sense to stack crit but either the simulation is wrong (or wrongly configured by me but I don't think so*) or our thinking on how stats scale post-haste cap is wrong. Any thoughts on this?
*When I run the same test using the standard T9 Moonkin sample character (4T9) I get the expected Crit >> Haste at Haste soft cap.
Scale Factors:
Druid_T9_58_00_13 Int=0.77 Spi=0.55 SP=1.71 Hit=3.94 Crit=1.52 Haste=1.15 Lag=0.00
SimulationCraft Output:

SimulationCraft for World of Warcraft build 3.2.2 ( iterations=20000, max_time=300, optimal_raid=1, smooth_rng=0 )
DPS Ranking:
7446 100.0% Raid
7449 100.0% Boidhre
Player: Boidhre tauren druid balance 80
DPS: 7449.1 Error=2.6 Range=837 DPR=23.5 RPS=317.4/304.2 (mana)
Origin: http://profiler.wowhead.com/?profile=15370746
Core Stats: strength=372|104(8) agility=353|86(8) stamina=1490|1042(922) intellect=1431|1068(910) spirit=800|593(421) health=22507|18027 mana=22731|19236
Spell Stats: power=3098|2364(2236) hit=10.86%|10.86%(285) crit=27.10%|19.93%(536) penetration=0|0(0) haste=28.87%|19.16%(511) mp5=0|0
Attack Stats power=1817|348(0) hit=8.69%|8.69%(285) crit=28.40%|20.19%(536) expertise=0.00|0.00(0) penetration=0.00%|0.00%(0) haste=48.64%|20.26%(511)
Defense Stats: armor=3971|3437(3265) blockv=0|0(0) defense=400|400(0) miss=7.70%|7.70% dodge=12.69%|7.11%(0) parry=0.00%|0.00%(0) block=0.00%|0.00%(0) crit=5.90%|5.90%
Glyphs: starfire/insect_swarm/moonfire/thorns/aquatic_form/unburdened_rebirth
Priorities:
flask,type=frost_wyrm/food,type=fish_feast/mark_of_the_wild/moonkin_form/snapshot_stats
faerie_fire/speed_potion/innervate,trigger=-2000/treants/starfall,skip_on_eclipse=1/starfire,instant=1
moonfire/insect_swarm/wrath,eclipse=trigger/starfire,eclipse=benefit/wrath,eclipse=benefit
starfire
Actions:
insect_swarm Count= 20.3|14.9sec DPE= 9363| 9% DPET= 8473 DPR= 35.5 pDPS= 635 Miss=0.0% TickCount=139 Tick=1369|1272|1721
moonfire Count= 13.9|22.1sec DPE= 16381|10% DPET= 14741 DPR= 24.2 pDPS= 759 Miss=0.0% Hit= 336| 318| 396 Crit= 701| 666| 828|52.1% TickCount=95 Tick=1476|1377|1816 CritTick=3080|2879|3795|52.0%
starfall Count= 3.8|96.4sec DPE= 13257| 2% DPET= 11700 DPR= 10.2 pDPS= 166 Miss=0.0% TickCount=73 Tick=458|135|816 CritTick=956|282|1706|45.8%
starfire Count= 68.9| 4.2sec DPE= 12562|39% DPET= 6414 DPR= 24.6 pDPS=2886 Miss=0.0% Hit=6658|6249|8531 Crit=13997|13061|17830|80.5%
wrath Count=112.5| 2.6sec DPE= 7357|37% DPET= 6875 DPR= 20.9 pDPS=2760 Miss=0.0% Hit=4888|3445|6853 Crit=10214| 7200|14322|46.3%
treants (DPS=345.6)
treant_melee Count= 42.0| 5.1sec DPE= 1734| 3% DPET= 1191 DPR= 0.0 pDPS= 243 Miss=0.0% Hit=1780|1699|1948 Crit= 3559| 3398| 3897|8.2% Glance=1335|24.0% Dodge=4.7%
Constant Buffs: arcane_brilliance/blessing_of_kings/blessing_of_might/blessing_of_wisdom/divine_spirit/fortitude
Constant Buffs: mark_of_the_wild/moonkin_form/replenishment
Dynamic Buffs:
abyssal_rune : start=6.8 refresh=0.0 interval= 48.4|48.4 uptime=22% trigger=25%
bloodlust : start=1.0 refresh=0.0 interval= 0.0|0.0 uptime=13%
eclipse_lunar : start=8.2 refresh=0.0 interval= 37.7|37.7 uptime=40% benefit=70% trigger=60%
eclipse_solar : start=7.7 refresh=0.0 interval= 38.4|38.4 uptime=37% benefit=68%
lightweave_embroidery : start=5.1 refresh=0.0 interval= 62.6|62.6 uptime=25% trigger=35%
lunary_fury : start=2.3 refresh=64.5 interval=106.2|4.4 uptime=97% trigger=70%
natures_grace : start=33.3 refresh=114.9 interval= 9.0|2.0 uptime=83% benefit=87%
omen_of_clarity : start=12.6 refresh=0.0 interval= 21.7|21.7 uptime= 6% benefit= 5% trigger= 6%
sundial_of_the_exiled : start=6.0 refresh=0.0 interval= 54.2|54.2 uptime=20% trigger=10%
Procs:
220.8 | 1.76sec : judgement_of_wisdom
Gains:
6255.4 : blessing_of_wisdom (overflow=4.3%)
22596.0 : initial_mana
15290.4 : judgement_of_wisdom
51590.8 : moonkin_form (overflow=1.2%)
5645.7 : omen_of_clarity
13082.0 : replenishment (overflow=3.9%)
5013.6 : spirit_intellect_regen (overflow=3.1%)
Scale Factors:
Weights : Int=0.67 Spi=0.58 SP=1.65 Hit=2.36 Crit=1.26 Haste=1.37
Wowhead : http://www.wowhead.com/?items&filter=ub=11;gm=4;gb=1;wt=23:24:123:119:96:103;wtv=0.67:0.58:1.65:2.36:1.26:1.37;
Auras and De-Buffs:
Constant: abominations_might/battle_shout/bleeding/blood_frenzy/crypt_fever/curse_of_elements/earth_and_moon
Constant: elemental_oath/expose_armor/faerie_fire/ferocious_inspiration/flametongue_totem/heart_of_the_crusader
Constant: hunters_mark/improved_faerie_fire/improved_moonkin/improved_scorch/improved_shadow_bolt/infected_wounds
Constant: insect_swarm/judgement_of_wisdom/judgements_of_the_just/leader_of_the_pack/mana_spring_totem/mangle
Constant: master_poisoner/misery/moonkin/poisoned/rampage/sanctified_retribution/savage_combat/strength_of_earth
Constant: sunder_armor/swift_retribution/thunder_clap/totem_of_wrath/totem_of_wrath_debuff/trauma/trueshot
Constant: unleashed_rage/windfury_totem/winters_chill/wrath_of_air
Dynamic:
Waiting:
All players active 100% of the time.
Baseline Performance:
TotalEvents = 41639530
MaxEventQueue = 20
TargetHealth = 2229461
SimSeconds = 6000664
CpuSeconds = 12.719
SpeedUp = 471787