[Apex_Missing_Ape]

I've got 19" wheels coming in factory SS 1LE offsets/widths that I will use for my track-only setup (so only want track-ready tires). I want to be as close as possible to the factory front:rear tire height ratio so that I don't screw with whatever algorithms are used when the PTM is doing its job.

So, in factory spec the rear tires are about .4" taller than the front, and I am assuming the computer factors this into its program. With the 19" wheels, I can't find track tires that maintain around that same ratio (30 series tires front/rear). The closest I can find are 285/35/19 front and 305/30/19 rear. That means the front tire will be about .6" taller than the rear tire.

I have two concerns with this:
1) it will affect the PTM system because it thinks the rear tires are spinning faster than the front (i.e. loss of traction event). I doubt it will cause issues in normal driving but may make traction control kick in earlier than normal in racing events.
2) the taller-than-factory 35 series tire will feel sloppier on turn-in.

A potential fix for maintaining the front:rear height ratio is putting a 295/30/19 up front paired with the 305/30/19 rear. That will keep it similar to factory spec since the rear tire is .3" taller. That will probably keep PTM happy. The problem is putting a 295 on a 10" wide wheel. Will that be worse than the 35 series on turn-in feel? Will that tire bulge cause a lot of rolling?

So which is the lesser or two evils?