Leon van Dommelen wrote:

>
> I was arguing that according to theory you should have oversteer changing into
> understeer, and that this might possibly explain why the car would feel vague.
>

Well I figured you mistyped it ...

but just the same, by "vague" it's clearly sidewall flex, talking not during
the midst of a hard corner, but transitional/low-speed "nimbleness".

Anyhoo... there's just something entirely strange about this one corner.
The more I examine the problem, the more I become convinced it MUST be road
surface.

Yesterday on my drive home I went around that corner (again, it's one of
those right-turn-lane, 90-degree right turns), and I was going about maybe
15-20mph, I was behind a Ford Expedition! While in the middle of the turn,
I blipped the accelerator and the car instantly spun. Release the throttle
a little bit and I did actually hear a chirp of the outside rear tire as it
gripped again. But being able to just stretch out your right leg a little
bit and get the car to spin in a 20mph corner is very out of the ordinary.