Was in snareline in my college marching band. A pretty high level band with many DCI players in the mix. We were taught to use the thumb/first finger fulcrum method. I never had lessons before the drumline and adopted the technique, figuring they knew what was best. Have to say, it worked in that setting.
But for last several years, I've had episodes of pretty bad pain at base of thumb (first carpometacarpal joint) that I have to attribute to a too-tight fulcrum.
So, reading this is a breath of fresh air. Knowing I can intentionally relax and adjust that fulcrum may help with my issue. Really appreciated the Wittet link.
Good stuff!