I've got Art covered in that area..... 5" slammed with me on it.... :lol:
But really, just lower the forks in the triple tree about a little over 1 1/4" or so which will net you about 2" at least in the front....that equals "FREE". The rear just use aftermarket dog bones which will give you 3 spots of adjustability, stock, 2" or 3". Not all dog bones are the same, some will give 1/4" +/- of difference. Not everyone makes them the same.....this equals $20-25.
If you need more in the front, you can still lower it more through the tree but I like about 1 1/2" and then use a strap to pull the rest. This will keep the forks from moving when launching which helps keep the front from wheeling.
My bike is slammed in the front and almost all the way in the rear but since I do not have an aftermarket undertail, I'm at the max from rubbing plus the swingarm box hits the battery tray under a good launch.