Here is the beast in question, which I got second hand with a bunch of other stuff.
The feet are adjustable as either rubber (relatively hard and non-sticky) or spikes. However, the "spread" of the tripod legs appears to have no locking mechanism at all. It appears to rely purely on the legs having enough friction not to slip on the surface they're resting on.
From testing, this appears to be fine on grass and rough surfaces such as asphalt. It is absolutely DISASTROUS on wooden and linoleum floors.
Am I missing something?
Also, what do all the knobs do? There seem to be things I'm missing here, and my google-fu is weak when it comes to finding a manual online.