The app already does little trophies for power bests but I don’t check the analyzer regularly. I think it’d be really motivating for an automated email to come through when an all time power best happens maybe with some fireworks, a congrats, and maybe how that power best stacks against other athletes in a population bin. For all time and for a rolling 3 month window.
Just a thought 
the app already identified bests, it would probably be fairly easy to add an email when they trophy gets triggered in the analyzer
. Cheers!