Thanks for all the warm welcomes! Trip from LA to LV was good. Cruised mostly at 80, got just under 50mpg average. No issues with trucks and sidewinds; super stable. I put wind diverters on which helped quiet the ride just enough.
But, the experience at the dealer I bought the bike from (Wheels In Motion in Chatsworth, CA) was not good. Way too many eff-ups and broken promises. It wasn't ready, ws missing things, and I spent more than 3 hours there. And then couldn't register it because one of their geniuses forgot to sign the previous owner's title. Cost me nearly seven hours of dicking around. No more dealers for me again. I don't care how tempting.
Looking ahead, it'll get a full fluids change and tire rebalancing. Thinking about an ECU flash, which worked total magic on my V-Strom. I heard the results are pretty much the same on the STs. Not looking for more power (though that's always welcome), but better overall power delivery and smoothness. Probably a better air filter, but keep the stock can (which I actually like).