John
Guest
That all depends on the rows planted and the yield of the corn. I have owned 2 of the 3 models that you are asking about, the F and M2. The F will handle the acres but putting a 6-30 head is really pushing the machine to it's limit. The M2 will again handle the acres and the 6-30 head with ease, but if you get on side hills with a yield of over 180bu_acre and the 6-30 it likes to throw too much corn out the back end, even with sidehill blower. So, if going 6-30 and side hills are part of your operation then the l2 would be my choice or do what I did and get an N series 3 or newer rotary. The last of the N's(series 3, 1982 or newer)had all the bugs worked out and was basically the R5_6_7. Good luck on your decision!