I got the 1.6.0 and 2.7.2 updates and now finally my stats(total airtime, gas saved etc.) are working. They worked for the first ride when I got the bike and started to just display zeroes until the latest update.
I have ridden my EX on a few tracks and it works well on small tracks. On tracks with longer straights you can only ride for 10-15 minutes every 2 hours (3groups x 20min sessions skipping every other session for charging and letting the battery cool down) as the longer straghts eat the battery...
I made an OnePlus 9 to Arkenstone adapter. My Thingiverse account is new so I cant publish it until tomorrow.
Edit: Link: OnePlus 9 to Arkenstone adapter by TheJ0rma