I use candle wax on the bonnet tape to stop the bonnet chafing which works well. It might be worth trying to rub some candle wax into the felt in the side screen channel.
My 4/4 was used as a daily driver and the side screens slope slightly downwards to the front. When parked, rain water would collect in the channels, run forwards and pour into the car on both sides. I can't remember if it made the windows stick but if you have water pooling in the channels it might make the felt swell? Using the smallest drill in my set, I drilled a drainage hole from the outside up into the window channel at the front which solved the problem.
