There is a good thread on ADVRider showing how to tune the vertical cut off of these new LED's with a piece of sheet metal trimmed off of a beer can.
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How to Modify H4 LED to reduce glare -- This is the one you want. | Adventure Rider
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The newest generation of emitters are getting pretty small so the light source is approaching the accurate location of a halogen filament anyway. The best high end cars all have blazingly bright HID or LED headlights. Motorcycles are relegated to half the light of a cheap car with one 55Watt halogen. Motorcycles need more light. Not less. I am going to try these.
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2015 CREE LED Headlight Kit 80W H4 9003 HB2 6000K 7600LM White Light Bulbs Pair | eBay
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