Oh whoops, haha, sorry Matt I should have read into what you said a bit more. Actually by my best guess, winglets are off by default and you need ACE to turn them on. Problem is that ACE doesn't seem to leave any change to the .cfg file except changing the ui_type from "ui_type=727-200 Freighter" to "ui_type=727-200 another company Freighter".

Which kind of seems like that would be all there is to the puzzle, but once I move the aircraft to the Super 27 folder and add its [fltsim.x] entry to the Super 27 config, the winglets disappear from the aircraft. It really is the darnedest thing.