Has anyone any comments on a NH Roll-Belt 450 versus a NH BR 7050? I know they make different size bales, and I am going to pass on the wrap. The dealer did not try to steer me either way because he has no history on the 450. However, he felt the BR7050 has been around a while and may be a bit more sturdy in the WV hills. Can anyone say something specific in innovations on the 450 over the 7050? I will be baling less than 100 round bales a year of decent horse hay.