I did not had any problem with my top after one winter in Quebec City. But I was always scare that too much snow on it would be hard. I clean the top every day. One morning there was 2 feet of snow. Still no problem. The top was change by PO with a glass window so no worry on that too. Often lots of ice on it but after a half hour drive with heater on, all was gone.
Still this year I now have a hard top ready and waiting for the snow to come in. Even Better, I now have a garage, so no worry at all this winter. Getting ready to put the snowboard on top and go for a joy ride to the mountain
Later all
Chris