Time for another update...
As of a few days ago I've now dropped below 200lbs or about 90.6kg so I made that milestone a couple weeks sooner than I expected. I've had additional flats and the last ride yesterday I had the bead blow out on my rear tire so it's done for sure. I managed to scavenge an old Bontrager RaceXLite 700x23C so I should be good for tomorrow but I plan to buy a couple new tires in the next month or so.
I've made the major milestone I was looking for but plan to continue to 180lbs or there abouts. My best riding condition, back in the mid 80's, was about 160lbs but I don't see that as a likely thing at 63 years old.
Brian