It sounds like you are actually touching on one of the forces of cleaning. So, there are 4 variables that I talk about when it comes to improving cleanliness and energy is one of them along with time, temperature, and solvency. So those are 4 variables that if you increase one you likely have room to decrease another. That’s what you deal with when you try to optimize your cleaning process. Impingement energy does help and improves cleaning if you are able to improve your impingement but it does not necessarily do anything for the surface tension.