I'm a short arse (5'7") and the T's a tall bike so I've wound the height adjuster at the rear down a fair way and dropped the forks down 5 line (I also wanted to speed up the steering with the 190 rear fitted). I haven't found it to be a problem at all, it's not unstable and still goes through a corner like it's on rails. You might want to do one thing at a time and see what happens but do it in increments.