I tink I am looking for the same thing you are. I want to corner better and faster. A I get to feeling like a motor home going through the corners. I got the power with the full ti arata pipe at 9.8 lbs compared with the 40 lb stock system. Rhe arata is $1000 at factorypro.com. Already feel the difference in power. First time out to the road I noticed that the bike droped like a rock into the turns, I wasn't ready for the change so I hadn't changed my body position.
I am still try to get better cornering. My idea is to get the weight down so that Im not pushing through the turns. I ride on a very tight turn constant direction changes. The bike corners really well except for the weight in the turn and that flicking thing. Fliking can be achieved with some brute force.
I plan to continue loosing weight. Me and the bike. For the bike I am getting the BST carbon fiber wheels in a couple of weeks. Very expensive at $4100. I will loose 30 more lbs. I will get less gravitatinal weight, more effective hourse power, and less gyroscopic forces. The gyro effect is what resists the flicking.
The next thing I plan to do is the carbon fiber Gas tank for anouther 10 lbs give or take. More flick. $1000
I am trying to find the best solution for the swing arm. I have not found anyone willing to build a CF swing Arm for the BUSA. Carbo Tek does build a swing arm and frame from CF but they are ducati specific and cost $4000 & $13000. I found some leads on custom Al and Ti builders and try them when I get the time next year.
I too have considered the shortening of the swing arm. If you do a search for RAD Busa built by Rad ?Geaves/Graves? he had built a busa for formula extreme racing. He shortened the swing arm 2.5 inches and raised the rear. He was happy with the changes. I have a feeling that some of these changes are going to affect the high speed crusing but it wont be worse than anything Ive rode in the 80's.
I lost 10lbs taking off the reflectors, emmisions, swap the rear sets, horn, and a few other things I can't remember.
I also plan to get the CF carbo tek body work. $1000. I dont know how much weight I will loose here. maybe 5 lbs. Some say that the stock body work weighs 20 lbs. I weight them and I get more like 12 or 13 lbs.
There is a lot of weight hanging on that front end. I might get a race upper fairing frame. Let me know if you have any sources for parts.
I am also curious how much weight I will lose if I change to Ti nuts and bolts. Maybe 5 to 10 lb. for around $1500.