Welcome to this board and welcome to MH900e ownership, Reventon. Did you get #1636 that was on consignment at ExImport? If yes, that one has an adjustable Ohlins shock in the back and can be lowered a bit (I think) as per Dietrich's suggestion. Also, check whether the eccentric in the rear wheel is in the high or low position. Difference is almost an inch in ride-height. I am 5'10" and feel uncomfortable with the eccentric in the high position and the low position is just perfect for me.
There are a few more MHe's in the Houston area; a week ago, #18, #225 and #1591 went for a ride together. Great fun. When I get one of the pics taken before we left, I will post it here.
Good luck and enjoy your new toy.
RonB