Lujaar

OK, I've managed to modify the ShamanFriend mod to keep a running tally of mainhand and offhand procs.

EDIT:

Did my first test in Blasted Lands tonight. One hour, virtually uninterrupted (stopped swinging to throw 5 or so heals, but that's it).

Test conditions: WF5/5, full enhancement gear, no AP buffs. Stoneskin, GoA, and Healing Stream Totem. My assumption is that haste effects - flurry and Dragonspine Trophy - don't matter for this test. I don't care how much DPS I do, or what my overall WF proc rate is. All I want to know is what percentage of my procs are mainhand, what percentage are offhand.

Mainhand: 2.7 speed
Offhand 1.8 speed
(40% of my white swings are mainhand, 60% are offhand)

I'm using the mod Shamanfriend, modified to track WF procs as individual swings rather than adding multiple swings together. I have it set to keep a running tally of mainhand and offhand procs. Anything over 300 damage is considered a mainhand proc, anything below is an offhand proc. My offhand procs range from 200-250, my mainhand are about 500+, so I'm confident that I'm not misattributing swings from one hand to the other. Crits are divided in half before they're tallied as mainhand or offhand.

Results:

Mainhand procs: 594 (43.36% of total)
Offhand procs: 776 (56.64% of total)


Based on these numbers, having windfury on my (fast) offhand isn't lowering my percentage of mainhand procs. 40% of my white swings are mainhand, and over 40% of my windfuries are mainhand.