i'm not so certain...
it could very well be that the die in his 3w unit was superior to that of his 1w unit...
the 3w claims improved thermal workings, but from all i can tell, it only applies to the method they use of bonding the emitter to the star.
there were no claims of increased output due to better/changed materials, so one would assume that the die is the same die as in the 1w (still subject to variances of course).
if this is the case, the 3w star may perform better with increased current than the 1w star, but the 1w emitter will still perform better with increased current than the 3w star.
it would be nice to hear lumileds official words, as pretty much all i have heard is conjecture /ubbthreads/images/graemlins/frown.gif