Well, I finally did it. I went with the AutoPilot and could'nt be happier! I did'nt post right away because I wanted to give an accurate report of it's performance. The truth is.....I'm shocked at how good it works!!! This is the easiest season I've ever had as far as water maintenance and also the best our pool has EVER looked! I've had more compliments on our pool in the last month and a half than I did in the first 20 years! I initially wanted a SWG to save money on chlorine, but I'm finding out the big winner is the quality of our water (very important with 6 grandkids).
Thanks Sean for taking the time to answer questions on this forum for pool-dummies like me, also thank you to Tim for returning my call and actually giving me a phone number to call back.
The unit I purchased was DIG-220 SC 48. Hope this helps.

Papa6