Here's a layout of the latest iteration of the canopy strut stop plates.

...a view of the side where I'll be machining away material.

...and a view from the other side.

Here's a sketch. Don't pay any of this much heed...as I write this, I know these will be replaced with a different version.

Machined away most of the material on Chris' mill.

...then sanded the desired curve on the oscillating spindle sander.