Years (actually decades) ago, I bought a pair of German hunting gloves which featured a clever slit in the trigger finger, which allowed the shooter to expose his trigger finger just enough to get a good feel of the trigger, I suppose such an arrangement is absolutely neccessary if you are to use a set trigger, which most German guns were (and many still are) equipped with. I still have the gloves and use them on all my cold weather hunting excursions.

The trigger finger arrangement is more than a simple slit in the glove finger. There is a flap of material inside the finger which covers the slit when the finger is not exposed. I wish I knew where to find a replacement when these wear out!