Check my Avatar at left. Same rims, but I went with 205/50 Yoko Advan Fleva. Only ~2 mile per 100 on the odometer difference and the lightest tire I could find at 18lbs. The ride quality improvement was instantly apparent. Hardly any change in turn-in response. If anything, lateral grip improved over uneven or rippled surfaces when turning. You'll love the setup
Got mine up for sale on the local Craigslist since shipping is probably ridiculous.