We get a lot of calls in regards to before and after compression scores of bat rolling and if we provide them. The short answer is yes we can provide the score if requested, the long answer and more logical response is why does it matter? Aside from simply wanting to know the score for relative purposes, before and after scores are useless and proves nothing. If it proves anything, it proves how people are being mislead.
I received a call today from a person who was inquiring on our bat rolling service. He specifically was inquiring on the 2020 Demarini Zen USSSA -5 baseball bat. He wanted to know what the bat tests at before and after a roll job. Stock, the -5 Zen test around 500psi +/- 20 points or so and after service, they maybe drop another 30-40 psi at the max. He said that is not the case because bone stock they test 750 and after service 500 as a competitor has pictures to prove it. I said 1) they do not test 750 stock and 2) rolling any bat will NEVER drop the compression 200 points less you breaking it. After a brief back and forth, I asked for the picture he was referencing. Upon receipt of the picture, I opened the email and shook my head. I responded to his email with a video I made of how compression scores are falsified most every where and asked him to call me back after he watches the video. He called me back and ended up giving me the order because of the video I sent him below. I then went on a send him a 2nd video of a stock -5 usssa zen being tested in the wrapper.
Here is the picture I received over the email from a competitor. This is beyond laughable. Look at how far off the dials are from left to right. By "far off", I mean the alignment of the gauges. The after pic (left) is turned back about an inch and half. They are not even close to one another. The only true number in this picture is the AFTER picture because that is what this bat tests bone stock! The before pic is a COMPLETE LIE. What this company did was over load the tester so the bat tests higher than it should. The after picture is EXACTLY what this bat tests bone stock. To this day, I cannot believe the amount of BS some companies put out there to make you think you are getting a good service.
Here is a link to the video I sent him that proves this pic is a sham. Check it out below
I cannot stress it enough folks, rolling is a BREAK IN SERVICE. Rolling a bat does nothing in terms of improved performance, bigger sweet spot, etc. A rolled bat will hit NO DIFFERENT than if you took the time to break the bat in on its own. The only way a bat would drop 200+ PSI is by shaving it.
All Bat Rolling does is do the dirty work for you upfront without the sweat! Nothing more, nothing less. If you would like more TRUE information on bat rolling, I have a few other blogs that I go more in depth of rolling and what it does.
See links below.