Let me apologize in advance for this stupid post. As you will see, I don't know a lot about playing the basss. However, this site has been a wonderful font of knowledge, and I thank all of you contributors who have indirectly helped me out in myriad ways already. I have just started playing the bass. I bought a new instrument from GC several weeks ago. It is a Squier Jaguar. I am generally very happy with it, except for the following: 1. The second volume control (for the straight/back set of pickups) hums when I turn up the volume. 2. My left index finger frequently brushes against the frets, which has caused me to callus on the side of my finger at the second joint. I understand that problem no. 2 is probably due to my poor (newbie) technique. But, should I try to have the end of the frets shaved down to minimize the impact on my finger? Or, is this just part of playing the bass? The calluses on my fingertips are fine; it's the callus on the side of my index finger that makes me wonder whether this is a player problem (me) or a bass problem. As for no. 1: should I bring it back to the store to get it fixed? Is there an easy fix? I opened up the circuitry and found nothing obviously wrong, other than the fact that it just hums. Thanks in advance for your input.