Being a parent to male teenagers has seemed more straightforward to me than being a parent of male toddlers, except when it comes to school reports. Discussions seem to be on an annual loop, with major dips in December, followed by a steady climb through the rest of the year to good results at the end of the summer. I should be used to this by now, but each December, I allow myself to become cross at seeing the same words again: careless, sloppy, no attention to detail, etc, etc, etc. With some self discipline, I managed to channel this crossness into some machine quilting, rather than immediately entering the verbal jousting match.
I have bought a straight stitch foot plate as recommended by Philippa Naylor, and this does seem to make these intricate curls much easier to quilt repeatedly, although I did manage to break a needle when forgetting that the plate is not compatible with zig zag stitches.
I was evidently not completely focussed though, as I managed to stitch the Supreme Slider mat directly to the back of the quilt sandwich.

Thankfully I could cut it free and it still seems to work. Glass of something Christmassy needed now.
