So, I have an HSH electric guitar that I'm modifying. I want to install some DiMarzio Titans in it, but there are two issues: 1. The guitar is HSH, and I need an additional pickup for the middle position. Is there anything you guys can suggest? And would ANY passive middle pickup be compatible with the Titans? I'm sorry if this is a dumb question. (The guitar is a 6-string). 2. The guitar was designed to have pickups with covers instead of the ones like the Titans that simply sit in the cavity. I did some measurements, and the Titans would physically fit in the space of the pickup cavity - but would it be easy to install them? I mean, it can't be much more difficult than drilling some small holes in the cavity, right?