This has been an on going thorn in my side as well. I currently have 225/45-17 on my 17x8 wheels.
While they offer an improved ride they lose a lot of that crisp turn in that you love. My tire of choice is the Michelin Pilot A/S-3plus having used the A/S-3 previously on in the stock size with the OEM wheels.
I like the added mileage, year round use, and added rain traction they offer along with decent tread life and warranty.
I asked the Michelin rep. about offering the 235/40-17 size in the future but it didn't seem to generate much interest as they claim that their will not be enough sales in that size due to no car coming that way from the factory