I consider my head normal size ;) and I use D7100 one notch and two notches on other side. With two notches both sides they are a bit loose.
As about to the wooden caps. They are mounted on bearings with 360 degree movement avaliable. Maybe they were moved to one extreme so they would touch the plastic in oppose to be wrongly manufactured?
Also D7100 are very sensitive to source file quality and DAC in use. The better the later two (not to mention the AMP) the more civilized they become. To the extent that with Maytek DAC they sound a bit plane (but both Mytek and Denons is still burning in).
Edited by sebna - 3/3/13 at 6:33am