[12 piece bucket]

OK me too generally speaking. Hitting and swinging are absolutely, positively different applications of thrust in Release. Pushing vs Pulling , right arm throw vs left wrist throw commonly, different directions of thrust even. But it is possible to Hit after a Swingers Startdown although Homer didn't like it much.

Is this the issue? Or are you saying the 3B Hitter who adds Pivot Thrust , a Right Shoulder Throw (making him 4B as I understand it) is adding a different Shoulder Throw than a Swinger would employ?

Back....define...."Swinger's Startdown".....then maybe we can talk....them are just words with not content....need some content.