Please explain further:
1) Does ratcheting mean that the tensioner adjusts its 'soft' setting as the chain and guides wear?
2) Why does this feature make it pointless to replace the chain as a preventive measure?
3) Does the tensioner maintain cam timing? I can't see how this could work without a tensioner on the other side of the chain as well.
4) <off topic> How does cam timing adjustment work on an M104?