Completed the upgrade on my 396T with no problems. The process is a little unusual but with a little diligence and careful reading of the instructions; I had no problems.
I'm in Chesapeake..... Digital Audio on PD Ches improved and seems to have removed the occasional digital bursts that were prevalent. Listening to STARS for the past hour comparing to analog on 159.135; reception has been flawless.
I would say, thusfar, definite improvement!!