With 3x600w, and a 10,000BTU A/C, my bill jumped from about 50 to 350.
When I say except the fan leaves, I mean just that.
i guess its kinda personal preference when it comes to de-leafing the fan leaves under the net, but if you have a small fan circulating air under the canopy, you should be fine.
The reason i leave the fan leaves is because I figure thats the "FOOD" for the bud. Those are the sugar shacks. All the juice. Why spend all this time creating nice big fan leaves if you're gonna cut them all off.
If it gets CRAZY bushy and you're nervous of PM, I would trim a couple and leave a couple. I've seen good results with skinning them completely bare, but I dont understand the concept other then keeping PM out from underneath the canopy. Deleafing all those fan leaves connected to the branches doesnt seem like it would help.
Once again, just my .02!
EDIT: I wrote an entire think on light periods/energy saving and it got deleted. Stupid keyboard. I'll keep it short., I suggest 18/6 or 20/4, not 24/0 (unless under floros) Peak hours = expensive hours. That means you're running through peak hours all day everyday.
When you flip to 12/12 try running 7pm to 7am, avoiding peak hours, any other electricy usage in the house which = lower baseline = cheaper energy consumption.