rg pickups ghostrider

Hello! I'm thinking of doing a small bit of pickup mods for my GR520 and RG8470. Pics of the guitars here: http://picasaweb.google.com/lh/photo/guZFst1b_kdqhytogZLfdg?feat=directlink For the Ghostrider: Does anyone know if you can change just the bobbin color for pickups? I'd like to switch...