Nice mini review Larry.
For your loose LCD2, have you tried compressing the headband? You can spread the yokes/gimbals and remove the whole wood assembly to give you more room to compress the headband. If you want it even tighter you can remove the blocks and compress just the headband alone. Mine came very tight from Audeze, the headband actually formed a small circle when I took the wood assemblies off to clean the leather and wood.
Larry great review. i look forward to more impressions on the HE500 from you. Pretty much what Fang told me about the differences. I see the HE500 may be more suitable to most people because its not the bear the HE6 is and the 6 performs best with high power amps this can be use even with a portable. Nice stuff and please post your impressions with the Woo 6 also it would help more people as many own that amp.