As I was handsteering I noticed that the tiller was getting a little loose, with a bit of a widening play. So I decided to screw things a little tighter. To no avail! Screws were simply broken due to corrosion (stainless steel against aluminum). One came out ok, but for the other I had to use the drill. I suspect the two others may come undone at some point. Things are better but there’s still a bit of play in there. I could tell this happened before by the remnants of other screws. Anyways, that’s the first real repair I suppose. Glad I picked up the drill!