You're getting a lot of good advice from these guys. First order of business should be to get her back up to stock height. Also, moving to a 190/55-17 rear tire will make a big difference in the twisties. That will give you an easier turn-in, more rubber in the ground at full lean, and even a little bit better clearance. To add even more ground clearance and turn-in quickness, you could look into raising the rear suspension by an inch or so. You also need to evaluate your riding position. Shane (Macon454) is getting his butt off the seat even when Marie is on the back. That makes a big difference as far as decreasing the required lean angle for a given curve radius/ bike speed. Anytime you can move your weight off the seat like that and alter the center of gravity for you and the bike, you're going to be able to carry more speed through the corners.
Dragging hard parts is the beginning of the end. Try to avoid it.
Dragging hard parts is the beginning of the end. Try to avoid it.