@noromance ,
The o-ring on the end of the armtube....is it’s purpose suppose to be...once the overhang is set right...push the o-ring up into the recess?...to lock in.
The o-ring on the end of the armtube....is it’s purpose suppose to be...once the overhang is set right...push the o-ring up into the recess?...to lock in.