Have any high profile quarterbacks significantly and noticeably improved their arm strength?

I listened to the Solid Verbal podcast this morning, and Ty and Dan discussed the plethora of “popgun armed quarterbacks” currently plaguing college football. Relatedly, a reader asked about why quarterbacks can’t seem to improve their arm strength once they reach a certain age. I can think of really only one example of a guy whose arm now seems significantly stronger than it did earlier in his career as a college player and rookie, and that’s Tom Brady. And, well, Tom Brady is Tom Brady. But it does seem like this is generally true, at least at the higher levels once a quarterback is physically mature: There are almost no examples of guys whose arms went from “popgun” to bazooka through discipline and training, not matter how tall they are or how many weights they lift.

This is not entirely surprising, given the unique nature of a throwing motion, but even golfers manage to add some power to their drives. (Maybe someone with more of a baseball background can tell me if any pitchers have added MPH to their fastballs after hitting college or the majors. Quarterbacks are not pitchers but there are similarities.) But I really can’t think of quarterbacks who have really improved the amount of power behind their throws. Of course, Dub Maddox and Darin Slack might have a thing to say about this, but I’m curious what the general reader thinks. Feel free to chime in.