Recently fitted Michelin Super Sports tires on my other car and I was blown away with the performance of Super Sports. Previous tires on were 5 months old Bridgestone Scuderia so it's not 'old' vs 'new' difference. I'm planning on ordering a set for 12C but as we all know they don't offer stock 12C sizes. I'm thinking going wider and shorter with 255/30-19 and 325/25-20 sizes. Has anyone here tried a such set up? Will shorter (smaller overall diameter) tires trigger ECU? I'm 100% confident the tire performance will be greatly improved over P-Zero.