Even though the bats are the same size, the one
on the right will appear longer because the
middle label is turned to face down.
There are a lot of things a player can do this time of year to keep up his energy but here is a small tip I learned from a former coach in the minor leagues.
Use a slightly shorter/lighter bat but turn the label down.
Most hitters hold the bat with the label facing them or "up." This is important when using a wooden bat - in order to hit with the stronger side of the barrel - but many aluminum bat users do it as well just out of habit. Turning the bat so the label is facing down or to the side creates an interesting effect for the hitter. It actually makes the bat appear longer than if the label is facing you. Try it! Hold a bat "label up" in front of you. Now turn the bat so the label faces down. Does the bat appear to be a bit longer than before? It usually does. Note: Metal/Composite bats usually have labels on both sides of the barrel. Turn the bat so the labels are on the sides of the bat and don't face up and down.
So if you feel the need to shorten the bat you use this time of year, apply this trick and maybe it will fool your eyes enough so you won't lose confidence about your ability to cover the plate.
In the words of another former coach of mine, "If it works, use it!"