SM try paddling when the air temp and humidity are in the mid 90's and the water temp is in the mid 80's, Rolling does help to cool you often but it does not last long. In the spring when the air temp is in the 70-80's and the water is still in the low 50's your boat still gets full of water from condensation, wearing a skirt makes it worse. Being on large lakes is different the being on the ocean and we can get away with out a skirt most of the time.

I do like the nylon skirts made by Bomber gear and quite often use a half skirt made by Seattle sports, It has 3 pockets that are handy.