Everyone says the Blizzard system limits stacking. Maybe that's why I can only it to about ten feet high. How high are the other guys stacking, twenty feet? Seriously, it pushes up as high as it can, then the snow under it I can sort of drive up on. I have no problem stacking it way higher than the roof of my truck.
I don't believe the chain hoist lets the blade go any higher. My blade floats up to the stops, gotta be as high as a Fisher. Seems like it anyway. Well, if I have any complaints stacking is not one of them.
As far as reliability, mine was really old when I got it, I've run it three years now, replaced one angle cylinder that blew, one wing hose blew last year (replaced them all while I was in there), both angle cylinder hoses the other night, Now I've got a pump leak that I caused while changing the lines. Going to fix it tomorrow.
Let's see, what don't I like about it...I'd like it to be faster. I hate slowing up and waiting for the wings to go where I want them. I'd like to have some kind of a backdrag blade for super scraping, although with this much weight it actually scrapes fairly well. I really need to put some kind of snow deflector on it, these 10 inch storms I can get it coming over the top easy.
I haven't spent much money on it, and this thing is old and well used. So no real complaints. I mean, I could ***** about all the little repairs, but it's a 99 for crying out loud. Hoses don't last forever.
You mention chain lifted 810; I think that's what the new Fisher Blizzard is. A tad smaller, a little wimpier looking construction (IMO), but has a chain for those people who absolutely have to have one.