Final update on this -
Got to the shop when they opened so they slapped my new T31 on the front to match the back. Put on 200 miles, all fun.
One finger braking power. Very smooth handling. There was a tendency to understeer on off-camber turns that probably relates to needing more preload. This is my first ride after servicing the adjuster.
I decided to randomly wander around Skiatook lake. Came upon a tight little right hander. Went in easy. Good thing, too because it was blind and turned out to have a decreasing radius, oh, and it comes into a left hander the same way, oh, and it goes into a right hander again! On gravel. Managed that and turned around in someone's long country driveway and went back to some other, different, unfamiliar roads.
Loved the Sargent seat.
I had a lot of fun and it was great to finally more fully enjoy this machine I purchased back in late May.