I think the HE500 is mighty comfortable, more so than the 650, which is too compressive on my head.
The 500 compresses somewhat, but not nearly as much as the 650, and not uncomfortably so.
And I use the pleather pads, and the alternative velour pads are supposed to be even more comfy and lighter.
If you want light though, the TH900 is for you if you have the $.
Edited by rgs9200m - 1/5/13 at 5:57pm