As I mentioned earlier, I wear my glove liners until late autumn. I'm currently wearing downhill ski gloves without liners. They are fine for the first 4 miles of riding on a morning in the 30s. That's the point at which I will want to start venting some heat. At that stage, my hands are warm enough that I take off the gloves and put them in my coat pocket. That gives me the dexterity to easily unzip my coat, undo my helmet, lower my hood, and refasten my helmet -- all the required steps to adapt to my warming up. My lights are on a photocell, so there is normally no need to switch them on and off. However, even during cold weather when I am wearing the liners and the gloves, I can still reset the light control easily. Maybe you need different lights?

Later in the winter, I will have the gloves on all the way to work, and the liners usually will go in when it gets into the teens and lower. At these temperatures, it's hard to imagine "thin" gloves having any benefit. Most other winter cyclists I know wear lobster mitts or mittens. However, I stick with my Grandoe ski gloves, because I've been comfortable skiing with them in temperatures of -30 F and they still afford much greater dexterity than do mittens.

That dexterity is a good thing. When I need to unzip to vent some heat, I can still pull my coat zipper down with the gloves on, although it is a bit awkward.