I have a question about these 3 and how they relate. I have a MM4 and I have the action down pretty low on it. My question is, will a thicker set of strings help with a slight buzz I have on certain frets. I use .045,.065,.085,.105's med nickel round wounds, and was thinking about moving up to an even larger size. I have huge hands and didn't think the extra thickness would matter. I also was wondering if having the frets sanded down a bit was an option as well. I have been playing for years and wouldn't think it was my technique since it's not the case on other basses. I also just had it set up and the neck is straight as can be. Thanks for any feedback.