Discontionued as of 3.1 when SCT author (+SCTD) announced that the SCT series have been discontinued. Alternatively people can head over to the MSBT addon instead.
The addon is really simple, it parses the combat log and finds out what auto-hit (or Stormstrike) that triggered the Windfury proc, then summing the two procs with the first normal hit and displaying the result as a critical event with the "immolation" icon (red, blue, yellow, depends on the type of WF proc -either all crit, or only half crit, e.g.)
It's really nice to be able to see the sum result of the damage done. You still do see the other WF procs but you can filter those out trough editing the SCT and adding WF procs to the ignore list. I plan to add a slash function to disable SCT from showing WF related damage so you only see the summed up one. Release time of that is TBA until further.