KMK said:
Just an FYI, "floating the ground" means that you are not using the chassis as a ground point. All negative connections would be wired to the negative battery terminal.
I have no idea where you came up with that idea, but it is not accurate, sorry.
With a motorcycle stator, "floating the ground" means converting your stator so it eliminates the "AC" split and outputs (after adding an aftermarket regulator which is also required for the mod) 100% DC power.
This only applied to the previous generation Husabergs with Kokusan stators that output AC for the lights and DC for the battery charging. The theory was that the battery always had it's own DC supply so the battery always had a good charging source. The problem was that the AC power could barely run the lights, and upgraded lighting such as HID lights require DC power. Hence floating the ground was a popular mod.
The 2009 and up Husabergs already outputs only DC power, and is fairly robust. It can handle most lighting upgrades, including the latest HID and LED lights that are available.
Hope this helps clear things up.