Bentlyj- I think I have avoided learning SU due to wanting to avoid more "computer time" in my hobby.  I'm at my desk a lot for work related stuff and when it comes to my recreation (woodworking is that for me), I want to be in my little shop.  I know I would be more productive, more efficient, etc. but my brain hasn't gotten my heart to give SU a try.  Maybe it's time to see how  it would impact my experience.