GPS rollover

[sos26]

I just found out about this mess ... It started last year with older units.
And according to Furuno the GP1650Ws will freak out in early 2021.... Of witch I have 5 units ... Three that I use and depend on..
What I am sure of, is after that date, the Date and time on the unit will be toast ! The question is,,will the repeatable accuracy be degraded ? One guy at Furuno says it may be OK another says it can be fixed with a factory upgrade. The official company bulletin says to upgrade to a new model..(that's a shocker)
So here I am between a shit and a sweat not knowing.... Some years back I waited TOO long to upgrade to GPS ,, and when the Loran towers were shut down I lost hundreds of numbers including wrecks off the east coast.
Side Note.... Long ago I found those Wks using Gary Gentile's books of shipwrecks. A friend of mine called him to see about getting the Lat Lon's ..
He said that he tried to get them but those people he called (people that found the Wks using his acquired and published TD's) would not give up the accurate Lat Lon's.... Oh well ?