No offense meant by this, but I got a better understanding of sharpening by abandoning my Edge Pro and switching to stones. The edges that I now obtain on my knives are not the world's best, but are far superior to anything that I could get on the EP.
So while the sharpening bug bit me while using the EP, graduating to stones gave me the better results. You might want to consider that before investing more into your EP setup.
However, run with what works best for you. Have fun.