Interestingly, if you measure the decay time constant (the slope when you plot it in a logarithmic scale) you get a value that depends on the top and not on the strength of the throw, so tops can be compared even if tested by different people.
I find it notable that the Gates started slower than the BK. I guess that you threw them equally hard.
I suppose that the real comparison is how long after the throw is the top going to slow for tricks. I further guess that said speed depends on top geometry (axial moment of inertia, crosswise moment of inertia, position of center of gravity, mass) and would still be rather subjective.
I think it would be cool to see comparisons between more similar tops. like a stock BK and a Neff modified BK.
I thought about using black tape for balance during tests.
