After my install I had to call the installer back to fix a few niggles. (e.g. they wired the 2 strings into 1 mppt instead of 2). I also asked them to tidy the cables under the panels as it looked like they were touching the tiles. I haven't had much time to check in the right light but today being nice and bright I took a look. Is this untidy and should I ask them to come back and tidy it up?