Big numbers for me don't even enter into it. The tones! Sensi ft was unusable under everything prior to 1.0, Now it is a killer program!!! As well as full tones in general. I am on1.1 and absolutely love it! This machine is so subtle even with me using it at least 20 hours a week actual swing time, and I am just starting to "tune" my ears... For those who have the time to invest, and totally ignore any one particular program setting... this machines mojo is its ability to be finely tuned and manipulated to fit the ground underneath it!