HI, I am assembling a package of implements to include with a pending tractor purchase (45-50hp). Was looking at bushhogs available locally: LP RCR 1872, or LP RCF 2072. I am at a loss to see the difference bw the two, except that one appears to be floating top link (RCF), and the other not. Can anyone shed some light on this for me, and perhaps explain the difference in function bw the two? I will be cutting some coarse fields and smaller underbrush....when I eventually select a tractor...but that's for another thread, thx!