"Talk after Lunch" basically means the "I need your help" option appears on Rachel's menu. If you meet the requirements then she will invite you to her room to 'help' you. The latest version has a new scene which I think is triggered because you have seen her naked after losing the 'cuni' contest.
I like the first 3 contests all produce one each of the three results, but the cuni contest is still a great opportunity for further 'progression'.
Not having a clue about the programming involvement it would be good if the MC didn't go first for example and "learnt" from Rachel's use of a finger. That 'learning' could allow further progressions and the MC could win the opportunity to lick Rachel, which would then create the obligation for her to return the favour with a BJ when the MC needs help.
Apart from the new bit in the handjob, I have found a couple of extras with Emily and unlocked her BJ, but not sure whether I just missed that in Ep.2?
All the stats changes seem great and much more helpful.
I copied my saves into the new saves folder inside the game folder, and they all open - However the progress chart has lost a lot of my previous achievements. May need to try a few of the older saves to see if it was just the newest save or all of them.