I did go ahead and download and install the 2.15.1 version and will do some playing around to see what differences I can notice. I was just wondering why it did not recognize that there is a newer version than what I was running.
OK - I did do some "messing around" and the ACES seems to give me some good control without having to mess with a bunch of other settings (although they you still have that ability).
I did also notice some improved performance when using the Exploration rendering.
Bottom line for me at this time is:


