So I read often that monks are choosing fire stance at level 20 these days instead of wind stance. Something seems wrong about this as I always just assumed that +10% double strike would be better than +2 damage but haven't seen any compelling evidence either way.
I've read some other threads about this topic but they don't seem very conclusive.
So, 111.3 is the amount of attacks a level 20 monk has per minute. So, with 80% offhand proc fire stance 4 will add ...
111.3*1.8*2/60 = 6.678 DPS
So, to know if wind stance is going to add more DPS than that will be dependent on base damage but it should be possible to work out the break point.
Big question: can you get doublestrike from offhand strikes? I think documentation suggests not but I've heard of enough instances of quad ToD's to suggest otherwise (0.8% of all ToD attempts will be quad strikes if it is the case).
Assuming that you can have quad strikes ...
111.3*1.8*1.1/60=3.6729 attacks/second compared to 3.339 for no doublestrike.
So, if 0.3339 attacks does more than 6.678 damage then wind stance is better, otherwise fire stance is better.
So, if I'm reading that right. If you do more than 20 damage/hit then you're better off in wind stance. Or is there something wrong here?
(if doublestrikes only occur on mainhand attacks)
(111.3*1.8+111.3*.1)/60=3.5254 if you only get doublestrike on mainhand strikes so .1864 difference in attacks. In that event if you do 36 or more damage with an attack you are better off in wind stance.
Obviously none of this takes into account Ki generation (crane philosphy + oremi set should be fine surely?). It also doesn't take into account AP and accessibility but the 18 dex needed for wind stance IV is only 1 more than the dex needed for ITWF. Also, storm strike IV is one of the best DPS strikes due to not many things being resistant.
This also doesn't take into account epic content in which the +2 attack may be important but 95% of fighting should be auto hitting auto held targets.