Oh Brother! LS2125 hook timing

We've all been there, just needing to do a quick simple job stitching together something for one of our projects... some drop sheets, a set of seat covers for the Monaro, maybe a cover for the boat... So you ask your partner if you can borrow their sewing machine, promising to put it back once you've finished. What could possibly go wrong?
In this video a friend of mine, let's call him Dave: decides to sew 4 layers of heavy canvas together on a boat cover... does the Brother cope? Do bears shit in the woods? is the pope a catholic? Nope, yep and yep!
Here caught on film is my first attempt at resetting the hook timing on this particular machine.
I've recorded the effort so Dave can fix it himself next time, and so can you!