An alternative mounting method I found during my testing (it was hard to get the 2m strip over all of the hooks while on my own up a ladder) was to lay the aluminium over the nails with the strip and coro on top. The sandwich meant that the lights were very straight while the fact you could only see the side of the lights reduced the intensity and light reflections.
One quirk though... somehow Red and Green are swapped somewhere, so when you tell the lights to be red they turn on green. Small wiring issue to be corrected!