"Recharging" Hop Aroma in the Keg

As an IPA enthusiast, the bane of my homebrewing is the decline in hop aroma after an IPA has been in the keg for too long. (I guess I need to drink my brews faster ) I've dry hopped in the keg before with good results, so that got my humulone-addled gears turning. Has anyone "recharged" their lost hop aroma by dry hopping in the keg after their initial hop aroma has faded? It seems like it would work in theory, but i've never tried it before.

Might be easier to hook up a Randall. I haven't tried lowering hops after carbonation.

i've added more dry hops after a keg was carbed and had been serving, you just need to add the bag very slowly and carefully as it will cause foaming