Hello all. First of all im 6'4 so back when we first walked through and fell in love with the floor plan of the 3900FB I knew it would take diligence on my part to remember to duck (slightly) while entering the master bath. No problem the first 3 trips but recently in the middle of the night while still half asleep i forgot to duck. The top of my head hit the upper door frame just enough to peel back about .030 of my scalp. No stitches needed but man O man that smarted. Needless to say I was now completely awake and so was my wife. I'm not sure if any of our neighbors were wakened as well. lol... There's between 3 to 4 inched between the upper door frame and the ceiling and im now considering increasing the clearance by 2". This would take away the potential pain of forgetting to duck again. I believe there's a solid beam above the upper door frame but I plan to get a stud finder to verify. Also I plan to give Keystone a call to see if my little renovation would cause issues with engineering / support. Has anyone ever attempted a similar type of upgrade?