hmm so ive always been saying yes, but what does it mean by save the dance? i havent touched s4u yet if its something to do with that.
It's basically asking if you want to save a video of the dance that you just played/messed with camera angles and appeals on (You can look at them later on from the main menu, the option after the 765 catalogs - one of the options after that is video, one is photos. Both of them cap at 50 though).
I personally just leave after-work performances off (second option in the first portion of the Options menu), because in my mind, I have S4U if I want to set up specific video/costume/music setups, etc. (the same option of wanting to save the video appears after S4U play as well) - not to mention they can take some time. This option won't affect performances after Allstar Lives (probably because of the nature of those performances).
I would also agree with wanting know the "Perfect" options for commus as well, though it's moreso because I've noticed results do affect memory gain. (I remember having restarted on at least one board-based commu when an idol was very near to getting another memory appeal, and the result has made the difference between getting another memory appeal or not, thus.) Not the most important thing when compared to other stuff - especially since memory can be gained from just doing regular work as well, thankfully - but I would still think it useful.
Does that also apply to the rank-up commus (in that memory gain is affected by the result)?