As tis mentioned in a prior post, what's the difference between the ski machine and kite boarding? No spotter needed with kite boarding:
https://www.youtube.com/watch?v=X0A1suBPSoY
As far as being injured or something else happening that would be useful to have a spotter or someone watching: What if I'm out on an SUP by myself and I fell and hit my head on the board? No difference really.
And a previous poster mentioned being concerned if they were in a kayak while I'm out there getting towed around. As I've said before on this forum, ALL kayaks should be required to fly a safety flag - period. Otherwise, the options are 1) don't go out; 2) stay close to shore; 3) paddle faster!
I've been in touch with the factory this morning to check on lead time and ordering process so I can take delivery next spring. Can't wait.