I have run the older IH rotary, but not a 2388. I like the MF 1st it has a very good rock trap, 2nd it is vary easy to get to the rotor with large accesses door, the new one 9690 and 9790 have some feature that look like would be good for specialty corps or the rotor, The rotor drive is very good and I like rotor reveres. The engine is Cummins like case use 5.8 liter in 9690 and a little larger for 9790. The feed impeller in front of the rotor keeps crop following (unlike case) into rotor. I think Cases AFX would feed closer to MF. The case some thing that are a lot better then MF, but what I have seen the 9690 has little more capacity then 2388 and 9790 is bigger. Swtvid