it seems like the 6L6G is supposed to sound a little different then a 6L6GC. the 6L6G of the past had much lower specs then one of the newer 6L6GC but this tung-sol is supposed to have the 'old sound' (not sure what that is exactly but seems to be a little thicker?) but with the same specs as the 6L6GC. so basically it seems like a 6L6 that looks cool and sounds a little different.
how does the height make it less capable towards physical microphonics? also what do you mean by 'physical microphonics'?
btw my curiosity / ability to buy into marketing crap led me to order some (probably should have ordered the =C= but whatever). they are backordered but should be here in a week or so. I will let you guys know if they are any good.