Great info! What sizes are you using?
I think for Summit Point I would start around 26, VIR around 28psi then. I'm tracking these Federal things in 100tw on Ebay, $620 with free shipping makes them awful tempting.
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'17 C7 Vette GS (bye) / '15 F31 328 ix (sold) / '08 E92 335i (sold)/ '08 E92 M3 (RIP)/'01 M5 (sold, sniff)/'07 M5 (sold)/ '15 M5
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