>>> What does your research show as the most effective way to finish your swing on a high pitch? Thanks. <<<
How high the bat finishes during the follow-through depends on the height of the pitch. The lower the pitch, the higher the finish. When swinging at a pitch up at the letters, the swing plane is close to level with the ground. Therefore the bat finishes much lower than it would with a pitch at the knees.
Tom and Rql make good points on adjusting to pitch location in this thread below.
how to hit outside pitch with power