So I mowed a customer's field last night with the MX6000. This was a pretty good comparison of the benefits of the horsepower (or not) as last year I mowed the same field, around the same time with the L4060 HSTC. I'd say if anything the grass was higher this year. I used the same 78" flail mower and coincidentally started mowing at the same time of day (7PM). In both cases the loader was removed. Well, last spring my notes show I mowed form 7PM to midnight. Last night I finished at 10PM - a considerable time savings in my book. The MX6000 HSTC only bogged down a couple of times. I mowed in low range, pedal to the floor, using the cruise control and the cut quality was good even though I am still running last year's flail knives. The L4060 was also in low range for mowing, mostly in low-low with occasional low-high where possible. Stall Guard engaging plenty of times, and the cruise set to a much slower speed.
Observations: I miss seeing the exact PTO speed and ground speed. I miss the automotive style cruise control, although the manual cruise control lever is very smooth in this MX and worked fine. Since this customer is only a couple of miles from my shop, I drove the tractor. I miss the self-canceling turn signals of the 4060. I miss the high beam indicator on the dash when those are on. And finally, although the L4060 seat would bottom out under my weight and this MX seat does not, the L4060 seat was a more comfortable seat aside from the bottoming out.
That said, the MX has some pluses over the Grand L: Number 1 is power. Driving it down the road in High range is much nicer. It has no trouble maintaining speed up moderate hills. It gets up to speed quicker. Also, after working the L4060 for awhile in the field with tight turns and backing up in the corner areas, it would temporarily lose power steering. This is a documented issues on the L60 series that is present in all versions of that tractor, unfortunately. The MX power steering worked flawlessly the whole time, no matter how hot the engine was or how fast you were twirling the wheel and changing direction. The larger front tires seemed to float better in the wet areas. The stereo is the same; the A/C seemed at least as good or better (course it was brand new, super clean condenser). The wiper oddly seemed better - faster? even though it appears to be the same. Anyway, great tractor, it shaved time, I'm happy. Fuel consumption is higher but you get done sooner. In the end, same amount of fuel used.