It would be great if someone could make a list of compatibilities somewhere.

In the future I would like to install metal tracks in my king tiger. So far I know (please correct me if Im wrong)
Heng long metal tracks are NOT compatible with tamiya sprochets.
Taigen metal tracks are NOT compatible with tamiya sprochets.

Kenny Kong and Impact make expensive but compatible tracks with tamiya sprochets.

What about the mato tracks? Are the same to matorro? Yellowshaker, could you give us a link where to buy those king tiger tracks?