Gday Hans
The LS mounts have a "home" sensor on the DEC axle. Ref piccy,
The home sensor detects a bit of reflective tape stuck to the inner clutch plate.
I cant remember the full details but IIRC, doing the level and home means it detects both home then level, and when you set the tube level to confirm it, it writes out the offsets to both points.
No idea why its there???
Andrew
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