I'm thinking about putting Grover Titans on my G&L. Unfortunately, my bass is a 5 string with a 3x2 headstock and I've only been able to find outlets that sell these in sets of four 2x2 or 4-in-line. Does anyone know of a site or store that sells these separate? Do you think if I got in touch with the Grover company they'd sell me a 3x2 set? Any input is greatly appreciated. Thanks!