Roto,
Not sure about NH but the "Quick-tach" for my J.D. is sweet. easily installed, drops, picks up blower easily. Just have to slide the extended mid-mount shaft in and hook up hydraulics. It took a while the 1st time but now done in a couple of minutes. Dropped it and had the FEL back on in about 15 min.'s, including storing the shaft, blower, and front hitch.
Good luck.