Additional question, anyone can answer this, but -- it looks like you did some extra routing on the pickup holes and expanded them a bit.
Was it because the DiMarzio SDs/PAF pickups were larger and required some extra space? Or extra depth?
In this case depth is my biggest concern, as I am personally a big fan of the 'EVH' setup of mounting the pickup inside the wood and making it actually touch the wood. Your pickups look like they float a little on the mounting screws, and it's all personal preference in the end, just curious.
EDIT: Actually a better question to ask might be, is the humbucker on that Blacktop Jazzmaster physically smaller than a standard humbucker?