you should try to replicate your results, especially if it is stable and it doesnt kill the diode too quickly. you would be able to make a killing if you made them and sold them on here.
CD520's 2 watt dual drive build impressed me enough to try one for myself. I'm going to modify a 1.3W SolarForce L2 build to a dual drive setup. Currently I'm using a single FlexDrive that seems to be overheating a bit (since my heatsinking is lousy). I've just ordered another FlexDrive set to 900mA so once it arrives all I'll have to do lower the output of the one already have and wire it up. This Flaminpyro build has definitely inspired me