Yah, I bought some H4 extensions (
these) and used them to tap into the passenger side headlight harness. From there the high and low beam signals each trigger a 30A relay, both of which are tied directly to the battery (though fused). As it stands now, both high and low beams can draw 30A of current (~360 watts @ 12vdc) before blowing the fuse. The switch in the dash no longer carries the power to the bulbs - it's simply a switch now.
When I first put the 130/90 in, I did so only on the driver's side with the factory wiring and saw little difference. After the wiring upgrade the light output is incredible - better than my 100 series Land Cruiser with its upgraded bulbs...
Here's a shot of the relays, mounted under the hood on the passenger wheel well: