Good Lord, I just read every post in this thread......my eyes and brain hurt.
I'm thinking I'll go with the BT 46 when I change. I love the inexpensive Shinko 712 but can't get the right size rear.
I don't ride fast these days but I do value accurate and predictable steering response. I'm skeptical about the "faux" Pirellis in that regard. Having said that I've really not had enough time in the saddle of this RE yet to be making changes.
Looking at your other bikes and previous replies I'm sure both the OEM tires and front end leaves you unsettled.
There is a now old thread (also long) called, effectively, "the front end sucks". Some of it is ranting but it does wind through a lot of the recipes to spiff up the front. Some easy and cheap and some complete re-do.
At a minimum you should change the fork oil. Mine was a different oil in one side from the other. One smelled like burnt hydraulic fluid and the other was a low fill. Almost everyone has benefited from sort of spacer from washers to adjustable fork caps to add some preload.
I take your point about getting some more time on it before making changes. I did that, too. And yeah the Pirellis are not bad. But after 2000 miles they didn't get better, either. The good news is that this RE has great bones and you will get it just right.