Hey Tom how are you, I see that you are in Columbia County, I'm in Bucks. It's interesting that you've been a member since 2007 but only have 11 Posts so it's obvious that during that long period of the clock issue and then Paul's protracted battle with cancer and his passing in late December of 2019 you very well may not have been on the Forum.
It took a lot of angst and back and forth to finally have that repair campaign started as it was an issue that many members had, I have long felt that we should have had a free repair campaign for the SDS series also but that's for another conversation.
There was also another issue that if you mentioned it, when you sent your radio in, for the free service campaign they would repair that also and that was the dim screen on the 436 and the 536, I'm curious, is your screen not as bright as it was when you first got your radio?
If so, I would indicate that also in addition to the clock issue and I believe they can repair that and give you a nice bright screen back.