A very enjoyable read, brilliant review
The photo of the pearl with the scratches underneath was very similar to how my Steelfish looked. I got some very, very fine wet and dry paper and taped up round the pearl area. Then proceeded to gently rough up the acrylic covering the pearl. It takes time, but after a while the acrylic becomes opaque and so it is very hard to see the scratches underneath, but the pearl itself still looks great!
It may be harder to do with the Evo pearl, as it is smaller, but it should still be possible. Just make sure you use the finest grade paper and use a circular motion to create an even finish.
Cheers