I never have beads of sweat except in the Summer. Does anyone else or is there something wrong with me? I don't ride 23 miles one way but I do many rides (MTB) where I average 15 miles per hour and I never have a drop of sweat. I may have a little dampness in my gloves, shoes, or earband/balaclava but I have never had a bead of sweat roll down my back.

It seems to me that your body should not sweat at least to the point of having beads of sweat, unless you are really hot, too hot. Your body is trying to cool itself off. It should be very easy to do this is cold weather. I have found that pit zips are also very nice to regulate heat. I have a gore tex cycling jacket with pit zips that I only wear below freezing. Anything above that and it is too hot. I have a cheap LL Bean Nylon Shell which is completely vented in the back that I wear in the 35-45 F range. Above that I am in jersey only.

What I have learned so far is that zippers are the thermostat to the whole deal. I love zippers. Zipping up or down only an inch or two can have major effects. I am still new to this but I don't see how you could wear any heavy mid layer and not sweat unless it had a lot of ventilation, like pit ziips and front zip. The coldest I have ridden in is the 20's and I just had my Gore Tex jacket and cycling jersey on and I still got clammy.