Saw this guitar being offered in the after-market. Note the compromised pickguard; an additional hole was drilled to accommodate the replacement humbucker. If you are diligent enough to read up on stuff before you commit to purchase, this won't happen. Seymour Duncan offers 2 versions of their production pickups, the standard & trembucker. The former is denoted by an SH abbreviation prior to the assigned model number (eg: Duncan Distortion = SH-6), the latter a TB abbreviation (eg: Duncan Distortion = TB-6). In addition to the slightly wider pole pieces spacing to accommodate the Fender bridge, the TB models feature 3 holes on the mounting bracket should you need to have one fixed into a Fender pickguard.
But the darn thing still works, there's still sound coming out from the speakers! Yes, you're right but it shows the type of owner you are & how much commitment you put into product knowledge. Such anomaly invites the potential buyer to further negotiate the deal price, do keep this in mind.