Center stand even though the Honda one is a PITA to install.
re CENTRE STAND
Good one and I forgot to put it on my list.
It was one of my reasons for getting the 919, the fact a factory centre stand existed and could be put on, that is.
Yes, it's (a bit of) a PITA to put on, but not too bad a job as long as you don't want to be able to easily remove, such as for a track day, in which case it is a MEGA PITA to contend with.
There is an easy solution, just do the centre cut out trick of the top tube where the pin goes through, then the stand becomes a very easy on/off proposition.
I've done mine that way, but with a tweak.
Do nice square cuts, or as close as you can, then file to carefully square up and dress, find suitable washers that allow for pin passage but still face up on the tube surfaces, then fit the cut out centre piece along with as many washers as you can fit in.
That way the pin is not so exposed to the elements and stays much cleaner for easiest in/outs.