That's exactly how my TR-001 works..
On a rare occasion (or maybe if you watch it long enough) one will turn green before the other but I find most commonly that they both stay red until both are finished.. Mine come off @r 4.22 - 4.23
Personally I don't think the extra 2 - 3/100ths of a volt really hurt it....
Are you guys saying thats how it works with the 18650s? Every other battery I charge will turn green independently when that channel is done (on my TR-001). I think the IMR18650 turned green while one of the flat tops was in there even. I am hesitant to toss one back on since they are already pretty much at cap.