I am trying to sell my quad but someone offered me a trade for a 2001 TT600 with 8000 miles on it. I wanted an F4i but I was curious if you guys could give me some info on the TT since I haven't heard much about them. If you could compare the TT to the F4i which is more comfy for longer trips? Which bike has a more aggressive riding position? Is the TT as easy to mod up as the F4i? Thanks.