Hi, yesterday, I picked up my 15 y.o. Strat after getting a fret levelling and professional setup by a local guitar store. The setup included slotting the nut. And I got 10-46 strings instead of 10-52 before. Overall for 150 EUR. After playing it today, I have some doubts about the quality of the work that has been done. Here is why: 1) I found two new scratches on the fretboard finish which was flawless before), each >1cm parallel to two different frets, probably the result of fret levelling 2) The (big) E, A & D strings rattle (even) more than before, especially between 1st and 10th fret, to an extent that I can hear when playing through my amp. I want to know if I became a victim of an amateurish service or I am too picky and these effects mentioned are "normal" when you get your frets levelled? Is 1) normal, because this happens when frets get levelled? Might 2) be the result of the nut slotting and/or the neck adapting after changing string gauge? Or do I finally need to learn picking softer? Thanks for your feedback and advice on minimising the negative effects mentioned.