I'm a freshman in college, and I started playing the bassoon almost 2 years ago. After a horrible experience with the instrument my university rented out to me, a Lesher, I bought a Fox model 220 from a student that no longer plays bassoon. I don't know much about bassoon, but it's playing well for me so far. My problem is that for some reason I seem to have problems with intonation on f and sometimes e naturals (4th line and 3rd space). This was a major problem with the Lesher, but I still have some difficulty with it on the Fox as well. It's either in tune or way off, and I'm not sure what I'm doing wrong.