FWIW, I lurk & read a lot here, but don't post much; this makes post #7 in more than six years...
I just read all 23 pages of this thread today, and learned a ton. I'm sure there's also a lot more that I missed, but it's like drinking from a fire hose I guess - I can only take in so much at one time.
I bought a 5' County Line box blade from TSC this week, to go on my Kioti CK3510HST. I'd read that County Line box blades were usually made by King Kutter, but mine looks more like a Tarter. When I bought it, I was told by both TSC people there to "just set it level, put your 3-pt lever all the way down so it'll float, and drive". I did that on a test run on a fairly inconspicuous area and of course achieved less than stellar results. The info in this thread, along with numerous youtube videos by Everything Attachments & others, should help tremendously.
A specific question regarding leveling - our yard is about 1.5 acres of the 40 we own, has never been landscaped or even farmed; never had an implement on it until the digging that was necessary for our house build. The land has never been worked at all, is on a sloped grade (house with a walkout basement) and has a lot of rolling high & low spots that I'd like to smooth out. "Level" isn't really possible, as everything here is part of a slope that averages around a 3/12 pitch, but I'd like to smooth out the rolls a bunch. If they were more like piles (like dumped from a truck), I'd understand how to level them, but this ground is more slow-rolling (undulating?), like a relatively calm sea I guess is the best visual I can offer. What's the most efficient way for a box-blade noob to approach this kind of smoothing/levelling, when the undulations are so gradual & shallow?
Thanks