LOL. I'm kind of in the same boat. I ordered my car with the 19s, thinking I might be putting a BBK on at some stage. Then, I figured 18s would be a great idea for the track, so I bought a set of OEM 18s....
Then, I saw HRE P43s, and thought "hell, those would be nice on the street", so I bought 'em.
I am right there with ya..... I LOATHED going to track days with the 18s. If I could have stored the 18s at the track, and switched over before and after the track sessions, that would have been OK (JUST OK....
).
I am now at the stage where I'm thinking - hell, the 19s are probably slightly stronger, and not much heavier than the 18s - why not just use them for the track? They look better, IMHO.
Got this 19" set up with about 70 miles on them sitting in my garage. Next summer, they are going on for track days - hell, I might even just use them all the time