Before you do anything else, you need to level the seat. Since you have are 6'4", raising it would be a no brainer while you have the cover off. After that, you add either that sit-&-fly cover or a set of beads and Bob's your uncle. Lowered pegs help with comfort too. I have done both, as has Rob (his seat is taller than mine, so you don't so much bed your knees on his bike, you just lower yourself a little into the seat...
Granted, I am not 6'2" or 6"4", so maybe you people actually sit on it.
Here are Rob's creations for the Mk1 and 2:
Mine is raised and leveled, but you can still actually see the step between the rider and pillion: