I guess this question is more aimed toward Dave D., Ken, and others that have put together a twin-screw kit.

My question is in regards to the drive extension. Have any of you taken it apart to see how it is assembled, and more particularly, if one could be modified (shortened)?

When removing the extension, does it have to be retimed to the rotors? Or bringing that question back a step, when is it nessesary to have the rotors retimed?

Can the rotors and bearing packs themselves be removed from the case in a similar manner as the M90?