JOHN - When I push snow with my Farmall, I carry the frt wheels anywhere from a few inches to a foot in the air for down pressure on the blade. I'm sure you do the same or similar with your skid steer. But when I put the IH blade on the frt of the 70 a couple yrs ago, it always seemed to find it's way down to solid concrete quickly and cleaned the drive really well, even where I had driven on the snow before scraping it. The more snow you push with the blade the more down force the blade seems to have. Running with the blade in the "float" position always seemed to work best for me. I was pretty surprised how well it actually did. If you needed more down force, locking the blade in float and using manual down force on the lift lever or adding weight to the back of the blade while still using Float would be best.
I got the blade for the CC to move the little 1 to 2 inch snows like we've had here the last week. Saves a bit of time and gas from getting out the big tractor/blade. First couple snows with the big tractor always results in un-desired remodeling of the landscaping until the ground frose, but the spring trip on the IH blade eliminates that. The spring trip works as it should, won't trip in normal use but trips when you hit something.
I always rolled the snow "downhill" on my drive which made a pretty good pile towards the end, but even with only 100# of weight on the back and chains on the 6-12 turfs I could roll snow pretty well. The faster 2nd gear, 19T, would have been better than the 70's slow 16T 2nd. I did try 3rd, but that just seemed to cause more wheel spin once you spun to a stop.
I'd hate to try to move two feet of snow with a blade on a CC, but moving 1-2 inches was fun.
Couple years ago I made the mistake of pulling my Farmall into the shop after cleaning the drive. Next snow storm, "Storm of the Century", left a four foot tall drift 2-3 ft wide and 30 feet long about 5-6 feet from my shop door. Took me about 4-5 attempts to finally BACK thru it and get turned around. It disappeared in a hurry then! I had a nice pile of snow on TOP of the PTO shield from backing thru that drift.