So, I got a five string bass the other day in the mail (the most intense waiting period I've had since waiting for my seven string guitar). It's a used Rogue LX205B. I did my usual set-up before I got into playing it, checking the neck for bowing, truss rod adjustment, radius and action, electronics, everything that should be done. I noticed immediately that there's a bit of a hump in the neck around the 10th fret. It's not an issue with the truss rod or the frets themselves, I checked those, it's just mildly warped right there. Does anyone know how I can fix this without having the proper tools, like the radius sanding block or the fret crowning tools? I mean, it's only slight, but to be able to play it without any buzzing, I need to have the action annoyingly high and that really sucks when I'm trying to play songs from bands like Dream Theater, or even my own songs (because I have a tendency to write sadistically hard bass lines).