I bought the premium self centering dowel jig from Rutlands and I have been testing it on pieces of 18mm plywood, however it seems that it is not quite centered correctly.
I did contact Rutlands directly who quickly sent me a video from the manufacturer on how they centre the jig themselves. It looks like they unscrew the 2 bolts on the non-handled plate and screw/unscrew the piece that the 2 bolts hold down securely, allowing this plate to be moved forwards/backwards.
It seems however that after performing this 'fix', the middle plate when tightened on a piece, is not parallel... It feels like the plate with the adjustment bolts is loose and can rock about the main threaded screw.
Does anybody have experience with this type of jig and correcting it?