Well, bit the bullit, after a lot of research and speaking with some auto crossing members. Got the Sprint Classics and now my GT is nimble, quick steering, very responsive and glued to the road, with tall, skinny tires. Very soft compound and dide is no harsher than 185/70s. Feels like I wanted it to. Got them from Summit racing. The price was the same as all the well known, classic tire companies, but shipping was free! So. I solved the yokahama problems. Thanks for all the input. Dennis P