BT023 Vs PR3

[VNA]

If you fit touring tyres they will do eveything you want and last that bit longer than sticky rubber and to be honest I have never noticed any differance between the two cornering, wet dry or otherwise.

I agree with most of what you say.  I haven't tried the BT23's, but I did have BT020's.  I then fitted PR2's.  The PR2's are much harder wearing than the BT020's.

What I did notice, other than the much better tyre life, was that while the OE Metzler ME4's were slow to turn in (not to mention poor grip and mileage), on the BT020's the bike positively dropped into turns.  The PR2's however seem to be neutral.  They neither need persuasion to turn in, nor do they feel like they are dropping in.  I felt they were perfectly balanced.

Also the PR2's don't seem to square off quickly.

But I'm afraid I've never tried the BT23's.