Hp67 and others, Drill or not to drill?

[Helix]

The holes can easily be masked by small pieces of black adhesive. In the attached picture they are more visible than in reality.
I’m glad that I didn’t try to remove the back plate, because now the appearance is still excellent.
For a better result, it is even possible to buy from Amazon, Ebay, etc. round auto-adhesive stickers. A diameter of 6 mm should be perfect.