If I were you I would consider doing the H9 swap. You can modify the tabs to fit a H9 high beam bulb in the H11 low beam opening. It's easy to do and there are guides on the 'net. It'll be alot brighter without being blinding, although you may have to aim the lights down slightly.
I've run both the H9 and LED's in my quads and the H9's definitely gave more light. The LED's seem brighter because the light is pure white, but they don't throw the light as far down the road.
My experience with LED's was they were fine around town where you have adequate street lighting, but were not great in the countryside where it's pitch dark. I did really like the pure white of the LED's over the yellowish color of the halogen bulbs, but the H9's seem a little whiter than H11's.
Just a thought, YMMV.