I am working on a Cimar by Ibanez P/J bass that has a scratchy pot on the P pickup volume. As I was going to change out the volume pot, I discovered that the pots used are 500k, but the wiring diagrams for P/J configuration that I've found all recommend 250k. I have a few of those lying around, but I would have to order a 500k to match the stock specs. My gut tells me to just use the 250k pots that I have since that seems to be the insustry norm for this pickup configuration. Is there any reason why I might want to stay with a 500k other than the fact that this is how it came from the factory?