I've got a 2910 and the 72 mmm and it works great. Taking it off/on takes me about 5 minutes, maybe 10 if I"m taking it easy. I've been using a couple of 4x6's cut like a car ramp, and I just drive the front wheels up on them, disconnect, and roll it out from under. I do remove the bars from the MMM to the front rack to do this and I don't know if there's an easier way or not. I suspect with the FEL on I could lift the wheels and that bar assembly would roll underneath. (I've done the drive on/off once and it just makes me nervous that I'm going to screw up a 3k deck. /forums/images/graemlins/smile.gif ) You do need little wedges to lock the wheels in place though or you'll just chase it all around the garage. /forums/images/graemlins/smile.gif
Good luck!
Regards,
Dave
PS - I put mine on for each mowing session and take it off for inbetween when I'm FEL'ing and Brush hogging. In the spring when I have to mow twice a week I probably won't do it, but my grass is almost dormant now.