Hi, I went to my local music store today and asked them how much it would cost to set up my bass. (I've been really busy in the past year and haven't had much time to play. It buzzes quite a lot.) He told me it would be about $70 and a new set of strings. I told him I didn't want new strings, but he insisted that strings had to be changed in order to set up the instrument. I used to set up my basses, and I don't remember ever reading that strings HAD to be changed, but he kept insisting. Was he right? Do I absolutely need to change my strings in order to have it set up? Thank you.