Hello again forumites. I'd hoped to make a happy NGD (hopefully still will eventually) but first there are some pressing issues. To get straight to it, I just purchased a Mayones Setius 7 and the pickups are producing a very unpleasant (metallic?) sound. I'll attach a short video demonstrating. I've adjusted the height but even when insanely low, I'm still getting these sounds. It's a JB/59 7 string set if it matters. Regarding the frets, they all look like they have oxidation (they look dirty and unpolished) and even small spots of rust. Getting my camera to focus on the frets was not working out.. Video below. (Edit: Will try to get a better video or pics) So, what do you think is causing the sound issues? Do you reckon the frets just need a good polish? As always, thank you for your time and wisdom!