Honestly, there’s not much of a difference between the two seasons other than the space between his feet and straightening of his front foot. Everything else is very close. Aside from the toe tap, the mechanics of Garcia’s swing remained somewhat consistent from season to season. The attack angle was 5 degrees both seasons. Same for the swing tilt path at 28 degrees. However, he gained a tick on his bat speed, going from 70.8 mph and the 34th percentile to 71.9 mph and the 46th percentile.
The toe tap is simply a gentle timing mechanism that clearly helps Garcia keep his balance centered at the plate, which allows him to get a little more whip through the zone. And he can turn on pitches waaaaay inside.