Once I fixed the origin to centre of mass, it was great!
edit: on re-watching this, I realise the last pins are suspended on thin air. It’s actually because I took ‘Rigid Body’ off of my more complicated lane geometry and placed a flat, invisible (not rendered) plane inside the flat part of the lane. Said invisible plane was sticking out beyond the end of my lane. Oops.
I don’t think this was necessary at all, just one of the things I tried when trying to fix my wobbling pins.