Is that a gc1700 series? I am considering a similar combo. How does it do with the 60" keeping up in deep stuff? Does the engine bog down at all?
I find the 60" is the perfect width (2007 GC2300, only about 18 horsepower at the PTO). If the snow gets real deep, I just can't go full speed (pedal to the floor in low range), but that rarely happens. If I wanted to, I can go faster in high range, but I'm normally just not in that big of a hurry. The only time I can't go full speed is when I'm, say, doing a path in the yard around the house for the first time in a long time. The snow isn't that deep (maybe 16" or so), but it's been compacted by gravity over several weeks. It's 48" worth of snow basically. The tractor will either bog down if I go too fast, so I simply slow down, or it won't physically push the blower... It just spins all 4 tires. Solution then is just raise the blower, and/or take slightly smaller "bites." This happened one time when I was at my neighbor's house, just playing around moving back a snowbank from almost all winter's worth of blowing. It did it, but it was difficult (tractor just spun the tires most of the time). if the snow ever gets to the point where the blower won't handle it, I can just turn around and use the loader to deal with it. BTW I'm running empty 10 year old turf tires with no chains or any added weight on the tractor besides the blower and loader.
Most of the snowfalls we get here are 12" or less in the three years I've had this blower. Therefore, I'm able to use the full width pretty much all the time with no sacrifice in speed. With the blower's extra width and the tractor's speed, I can do my driveway in maybe 7 minutes in a 10" snowfall. It literally takes me longer to warm up the tractor and get dressed and clean the tractor off when I' done than it takes to do the actual job. With the 48" blower on my Wheel Horse, the best I could ever muster was about 9 minutes, and that was probably 3-4". With a 48" snowplow on a whelhorse that moves about 3/4 the speed of my SCUT, it took about 15-20 minutes to plow, and I had good sized snowbanks all over when I was done. The blower solves the snowbank problem, but I have the advantage of lots of room to throw the snow. If I didn't have much room, as in years past at different houses, I'd just have to direct the snow with the chute more carefully. Plowing was not a viable option.
Being as how the blower is about a foot wider than the tractor, I rarely unintentionally venture outside the path I just cleared. With a blower about the same width as the tractor, I was always knocking snow into my cleared path with the tires when turning even just a little.
As I mentioned, this is an older generation of this model blower. Besides pushing the snow thus leaving a pile at the end of the row, the impeller isn't efficient enough to keep the bucket clear. This leads to snow spilling out of the side if I try to go too fast, even if the tractor can handle it. This is more evident in wet heavy snow. I think the got it figured out with the more recent models, as the impeller is shielded over about 25% of it on new ones.
I have to make sure to be extra careful with this rear mounted bower. With the loader hanging 5' off the end of the tractor that swings around when I steer it, often times when I'm looking the opposite direction at the blower, I have to be extra mindful of where the loader bucket is in relation to an obstacle. Fortunately I've never hit anything but a plastic garbage can.
The only other disadvantage to this larger setup is maneuverability. I can't get with this blower where I could with the smaller blower, like up against the service door to the garage. Gotta shovel about 3 square feet every time
it's an exposed aggregate sidewalk, so I don't like using the loader on it.