I have the same Moto...also 6'4" tall. I noticed that your seat is a one piece , I thought that was only available on the GS Adventure model. did you customize the GSA seat to fit your bike? if not ,where did you get the seat? I also Have the 2022 GS Adventure model... I can tell you that it is the most comfortable bike for tall guys like you and me. I appreciate your channel and hope you will make more videos.

Thank you for your video! Do you know where I can purchase those pins from the US?

Exactly David! The only downpart of going up more than a centimeter is that the locking mechanism seems to be to much out of line for it to work. Also I notice that when I sit on it the seatpan bends a little so the play between the tank and the seat gets bigger..

If you have a 3d printer you could easily design the two lower parts to be thick and print them up .