I had an HLA 2000 on a Kioti DK35 and liked it so much I bought the 3000 for my new tractor. I have never seen the Curtis Sno-Pro. I tried to compare them from the online spec sheet for Curtis but couldn't find the weight.
The HLA has horizontal float that's great for following the surface contour. It has an angled single cylinder that places the blade closer to the tractor. It's also a true snow plow that will roll the snow off the blade, not sure about the Curtis. It looks a little too straight in the photo, but it's hard to tell. You should probably try and find a video of someone plowing with the Curtis to be sure. Too many snow blades are marketed as plows.
Either plow should be about 18" wider than your track to cover it when the blade is fully angled. I guess the big question is how much more is the HLA?
Good luck in your search!
Here's the 2000 on my Kioti and the 3000 on my LS. (FYI I had the 2000 painted, that's not a standard color.)
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