I did the opposite except kinda, I purchased converted spec 3 GL1800 to F6B.
In terms of comfort it is second to none and I still have all the creature comforts, heated foot rests and seat, ABS, reverse, adjustable windscreen, XM, etc,etc.
This is the bike Honda should have offered in 2013 IMHO.
Nice colour. Came close to buying one last year but keeping the F6 for now.
2013 F6B in black of course