I always render my completed scenes in ultra quality. Is that not the setting for 25subrays 100% threshold? If not I guess I will start using the user settings menu. :)

I wouldn't mind to be able to go even higher if the option was there. Maybe in V5 we will see higher level options.

Oh and I always took the final mode to just show what it looks like with even more options enabled just as preview is more options than sketch. I never use final unless I want to see some AA version. I think all my pictures I have put in my gallery have been at the ultra quality.