You have a nice set of tractors, some very unusual to see around here.
Feeding for us stopped about the last of March. Fescue, clovers and Orchard grass started coming on. The cool spell hit and slowed the growth rate down, however, the cows never caught up to the grass. My Son is round baling 25 acres today and about 150 more to go.
I also enjoy mowing with a NF, but here in south central Ky we are in the Karst region of the state and have lots of underground streams and caves that lend to sinkholes falling in over the winter/spring seasons. Just about the right size to wipe out a NF before you can hit a brake. My Dads first tractor was a New VAC Case with NF. I mowed with the 7 ft Case #10 sickle bar with it when I was a kid and it would also spin on a dime on the corners. Ken Sweet