hello there i was wondering if anyone tried either the x2n or invader humbuckers or perhaps both. what are you takes on it and what kind of sound did you get out of it? im curious cause i want to find a new sound for my guitar i have some kind of rg with emg 81/85. not sure what model since i bought it used the only thing i know is that it was made in japan in 99. also whats the difference between f spaced and non f spaced. thanks a bunch!