Thanks Lewa! I have started occasionally doing 3 sides per feeding, but maybe I will do that more consistently.
I have also moved the solid meal to right after nursing, along with greatly limiting the amount of solids, and then a top up nurse immediately, or very soon after. It does seem to be making a difference.
We still aren't where we should be, but I think we are moving in the right direction.
Unfortunately, now that he has his 4 front teeth, and I think he's teething again, he started a new thing today where he bites near the end of the feeding when it slows down. Frustrating because I'd like to keep him on as long as possible to try and stimulate more production. Hopefully this doesn't become a habit!