Redline may have some answers to your questions.
They are the experts, most of us here, like me, are mere enthusiasts.
I've never heard of a problem with Redline and seals.
My first thoughts are that the way esters can cling to metal may better protect an engine that sits unused for extended times.
Esters are said to have problems with moisture...but I don't know if Redline Ester base stocks are that sensitive.
Redline is exceptional in engines that are modified or driven hard.
But it is a very good oil with excellent additiveas that can be used up to 15,000 miles / 12 months and should be fine in an engine that sees very light duty.
The big question is do you need it? And will the ability of the Esters save enough startup wear to justify the cost?
I've always noticed just how smoothly our engines run on Redline. I guess this is the effect of the POE basestock and the moly. So between the Esters and the way the engine feels when you drive, you may feek Redkine is worthwhile.
But I think there are other options, perhaps, a HDEO like Shell Rotell T 5W-40 'synthetic' changed every 6 months might be as good, or better.
If you wanted to change only once a year, you might also look at Amsoil Series 3000 5W-30, which Amsoil rates for 3 times the maximum factory service interval or 12 months.
But an inexpensive 'synthetic blend' oil like Motorcraft 5W-30 changed every 3 months might work just as well.
Also, whichever oil and OCI you choose....I think that you can do a lot to keep the engine healthier just by driving the vehicle at least once a week for 20 minutes at highway speed.
And, the 'Italian Tune Up' method of higher revs on the entrance ramps seems to keep the rings and combustion chambers in good shape.
You might also use a good fuel injector cleaner like Redline, Chevron Techron, or Valvoline Synpower in the next to last fillup before an oil change.