[Bigwill]

ARRRGGGH Mike...

ITS different .. but thats beside the point

It becomes different because on how it Assembles.. NOT by pure intent ...

Ie.. you cant say you want the Tricep become a HIT or a swing , Accumulator 1 or Extensor action , with the same elbow , with the same way the elbow Pull ... ... get what i am trying to express?

I think I do. You're asking, "If extensor action and the hitter's drive-out both involve triceps activation, and extensor action is active from startup to both arms straight, what differentiates the triceps activity of extensor action from the triceps activity of the hitter's drive out, considering that the triceps only extends the arm at the elbow?" Am I on the right track?

Maybe the difference between extensor action and the hitters thrust is felt at an anatomical level. In other words, the triceps muscles are extending in both cases. But maybe other muscles (pecs, anterior delts) come into play during the hitter's drive-out, while they don't necessarily do so in extensor action??