Interesting, I've had to yank the headlights out way too many times for various things but no issue with those bottom slot tabs, now you got me worried! LOL
But I have nice bright LED brake light/markers on the rear so I'm not worried about them burning out nor causing much of an electrical drag. Never hurts for visibility either, some people run their full headlights ALL the time anyway, so I think running all but headlights during the day is a nice compromise, but totally to each their own there...
But heck yeah, that PDF he made is absolutely awesome so I think I'll put that on the list as one of my projects to do, but I still gotta get my intercooler going first, finally will be able to order that soon!