I've experimented with different tire sizes on every bike I've owned, except my current XR. The fatter front tire will definitely affect the handling. It will take more effort to get through the twisties for sure. Lane changes and highway offramps will also feel much different. This being said, you just get used to it and it becomes the new normal after about 500 miles or so. I'll be interested to see a pic once you decide....Ride on bros.....
2011 XR Midnight Cherry, Hard Bags, Vic htd grips & seat, Vic medium Windshield, unlocked speedo, Lloydz Air filter, VFC III, Lloydz ATS +4, Vance & Hines slip ons
1993 Vulcan 1500 (sold)
1981 Yamaha Seca 750 (ridden into oblivion)
1977 Honda 550 (sold)