Glad you were able to figure it out! For me, while I wear skiing lobster gloves (separate thumb) for the frigid 4 block walk to the office from where I park, I HAVE to use regular gloves to drive, can't have my fingers together like that to drive. Wish I could, my hands would stay warmer. I am the only one I know who routinely needs two pairs of gloves to go to/from work - but it is such much kinder to my hands. I am hoping that my thumb will calm as the weather warms. Assuming that happens.

Meanwhile... for the geology nerds out there :-)