Originally Posted by
Guran
"You hurl molten lava at the target, dealing 888 to 1132 Fire damage. If Flame Shock is on the target, Lava Burst will consume the Flame Shock, causing Lava Burst to critically hit."
Nowhere does it say it has to be YOUR Flame Shock.
And your faster OH logic is flawed. The amount of WF attacks lost is minimal. Hell, with a slow WF/fast FT combo you should see more attacks per minute then dual slow WF. Flurry is also not dependant on weapon swing speed, except for that 1 WF & SS attack every 8-10 seconds. The difference in uptime will be minimal.