I'd say it's more that for some reason, sometimes a line which has a check doesn't end up firing. I'm not sure if this was because of checks or something else entirely but at one point a handful of the lines in one of my dialogues just wouldn't fire off no matter what I did. At the time, I was using the check system to determine where in the dialogue the scene was, to supply the appropriate dialogue lines for vigorous interactions or pre-cum lines or what have you. I have since swapped it to the other method where it's something likeIs there really enough performance gain from avoiding checks to justify using delaying lines? Too often they bog down the pacing themselves. Hasn't anyone found themselves watching an empty dialog box for long enough to turn their anticipation into irritation? It doesn't give the impression that the dialog is performing well.