Rez....

That looks definately like hot burn, no question about it.

That board you have can indeed absorb a trmendous amount of heat from CFLs. Enuff to do that to the leaves as well. Thats why I like them actually....They absorb, rather than reflect the heat.

However, if your temps are now in the 90's you're gonna have a hermie on your hands if you dont do something.

Hanging the lights free style will fix the burn issues...

You are using a computer fan(s)? Sorry but that wont work.

They gotta go right now. You need some real fans. Than fan that I have is the same one you have. You need to use something stong like that.

Your plants have developed a nice stem, it is no longer essential that you have a fan blowing ON the plants. You now need to focus on the space between the plant tops and the light bottoms.

That area must be constantly cleared out and the hot air REMOVED and cooler fresh air must be brought IN.

In watching your, movie I do see some nice movement on the front leaves but not much on the rear leaves.....Stronger fans!!!!

One final thought... I notice also with the positioning of the fans..you appear to have created a "DOWN DRAFT" by having the fans higher than the canopy surface you are trying to cool.

It is quite likely the heat is being drawn downwards becasue of the cirulation issues you now have.

You need to drop the level of the fans, and or.....position to they blow the hot air up and away from the canopy. Again, There is really no mandatory reason now for air blowing on the leaves....the wind, environment however must be redirected...UPWARDS.

You are fanning the surface from the side......to the back wall. This is almost useless.

One big strong fan blowing from the end to end style would better suit your layout.

Hope I could help.