I don't know what an 'M1 iMac' is, or who 'macrumos' is (I found this page when I searched Bing for 'tilt gate'), but my gate is very tilted and the sheep are able to jump over it, which is a real problem. I've spent all afternoon chasing them back into the field. What kind of hinges should I use when I re-hang it to stop this happening again?