Sorry guys, been busy but I hope I can asnwer some questions...
1. My room is pretty well light controlled and I only watch at night ususally as well. It is a half basement and the windows all have wood blinds so hardly no light at all at night and limitted light in the day. In the day I can switch to ISF Day which is brighter if needs be.
2. I think there is a definitie improvement in picture. I will try and find some reference points for people but honestly I ahve a 2 month old baby at home so any time I can get to watch a movie or a show is usually spent on jsut that and not tinkering like I used to love to do
3. I was using some older settings from N3W813 which I thought looked real good (thanks for the settings N3W813). They were not the latest updated settings from N3W813 without the 10 point color adjustment for Nov 12 builds (which mine is) but I may try setting those up on my THX mode for comparisson reasons
All of the before calibration measurements were done using THX Mode and N3W813 older settings.
Hope this info helps guys.