>>8411286They are as you described, and they work reasonably well. The older set's treads are a bit too big and the tank not quite heavy enough so it sort of floats on them; the newer one is a perfect fit and rolls better.
>>8411290>>8411107Sluban's design is certainly one of the best alternates out there. Kre-O's are up there too, and I have a soft spot for Wange/Dragon Blok's distinctive blockheads. Will have to gather some of them together for pics, most of the time they're standard Lego KOs but with interesting faces, like the happy Chinese here. Block Tech's figs on the right are much more original, though again I mostly collect them for their great faces.