The problem with getting brighter lights on a blaster is not so much the mounting it has to do more with finding the power. The stock light is 45W and that's pretty much all the stator has (you may notice it dims at idle). Search around here it's been beat to death, but you can float your stator and install a battery to power more powerful lights. For now I have an isolated 12v battery that runs a spotlight, and just running my stock light for general riding.
I'm hoping one day to be able to either float the stator and charge my battery to run larger lights, or get a combination of lights that work good with the stock stator.