I just picked up a MP Jaguar Bass and I bought a J bridge cover to put on and it doesn't fit. When I slide it on, it makes contact with the bridge before it is on far enough that one corner doesn't hang over the edge of the guitar. I've read that the cover should cover most of the bridge pickup just leaving a small part (basically just the screws) visible and I can't even get close to reaching that. Are there different sizes of jazz bridge covers or will it simply not work? Any suggestions? Thanks!