We are currently running a Hesston 4790 and are looking to upgrade to a MF 2170 3x4 Baler.  I would like to talk to the guys that are running them and see what the advantages are.  I have had dealers tell me that I will gain speed and weight over the 4790 and I have had dealers tell me that I won't notice any differnence at all.  I really like the idea of on board hyd. and think it would take the stress off our tractors hyd.  Thanks in advance