@bjoern They’re certainly wedge shaped, just very subtle. They were made from a 3 1/2″ wide piece and I marked 2″ from the edge at each end, marked a line between the two along the length and ripped it. The 90 degree one wasn’t quite at 90 degrees so I altered the dado to correct it, which changes the dimensions (slightly larger) so the wedge no longer fits where it should, which is why it’s not sitting snugly. As opposed to trimming the wedge to fit the now correct dado I’ll make a new board and re-use the wedges. Nothing wrong with a bit more practice! The 45 degree one (which I did second) is a real snug fit after hitting it into place with a mallet.
"To know and not do is to not know"