Well first things first, you are ALWAYS welcome to come up to South Bend and take a ride and of course share a meal or something.
That being said I will offer you a few observations. I am 5'10 but have a 28 inch inseam so I am short legged and long torso kinda guy. I went with the King due to my weight (300lbs)
as that is what I had on the Valkyrie as well. What I did discover right away is that the seat raised me up about an inch and back from the bars about an inch. (Des had told me that this would be the case.)
At first I wasn't really hip on getting raised up an inch as I could no longer flat foot the bike, but after a few rides I don't even think about it anymore. I also put on a set of risers that raised the bars and brought them back about an inch. I am as comfortable on this bike as I was on my Valkyrie. My wife however felt much more "in" the Valkyrie and felt insecure due to the low backrest on the F6B. Des also installed his passenger backrest riser and I tried using the stock pad as I preferred the looks of it. It just didn't hit her back in the right place to giver her the support she wanted so we tried the Ultimate pad and she says it works great. She says she is comfortable now but admits that she gets more air and feels more exposed than she did on the Interstate which is understandable.
I had a Corbin on my Interstate when I first purchased it and thought it was like sitting on a board. I was on a ride Friday night with a guy with a new WIng and he had just put a $1200 Corbin on it and both he AND his wife hated it due to it's lack of padding. They sat on my F6B and said that they will be ordering a set of seats from him ASAP.