I mow about 6 acres with a 72" autoconnect deck on my 3720. I put the deck on before I go mow and take it off afterwards. I struggled the first couple of times and had to fine tune the alignment. Once I got it aligned, it is very simple and literally a minute or two process each time. It takes me longer to get out of the cab and set the height bar back to my desired cutting height than it does to drive on or off of the deck.