Installed the newest software in to my perfect pass last night. It's an improvement over the early version no doubt. The most noticeable thing is how quickly the boat settles. It had none of the symptoms of the version 8. No brutal spike at 2 no run away in the middle of the course. If this was the version that I first bought I would probably have skied it as is. That said, the ball times were much improved with my custom background numbers. My numbers give me ball times much more consistent, within a thousandth or 2. Factory numbers are skiable but ball times varied more all over the place with inconsistencies of 2-4 thousandths. So in short if you have inexperienced drivers or short setups it's worth the upgrade. In the end all versions are capable of the same results.