Nice trip at 79......me at 77 not far behind....as many of forum members are old, too. Somethings, I have learned and followed for 61 years.
1. professional quality riding gear to cover all temps waterproof boots/rubber boots/waterproof gloves/mitts. Electric stuff does not work for me, same with mesh junk
2. comfortable, light helmet.....getting harder to find...Arthur Fulmer good source as their info includes actual helmet weights.
3. comfortable throw away ear plugs. I go thru at least 2 sets a day on long trips.
4. machine in good shape and fresh tires. I find tire replacement in middle of trip s pain in butt.
5. Ride alone---that way you are on own schedule. Keep gas tank up.
6. Quit when you are tired----following pre-set schedule can kill you.
As Air/wind management not really that good in SilverWing-----can be tiring in its self
I find as now fully retired, there are 200 mile days and then there can be 500 boring mile days.
Take a nap on side of road if you get really sleepy----try to hide, as some people will call Police, I know happened to me many times.
If you think riding skills are declining...take a course. One thing also, many older riders were never very good when young......that's one reason you see so many GoldWing Trikes.