Simple all, it is a sales gimmic to help those who are on the fence decide why it is okay to spend so much more money for the same performance. Truth in advertising in the airgun world is not something that is highly monitored, if at all. So, if you were using the same powerplant in multiple guns, some costing nearly double others, you would need to show SOME performance advantages, and who among us, other than a few, really check this out.