Purely hypothetical as I'm not yet pregnant with no.2.
With Ds my contractions came every 2-4 minutes from the word go which freaked me slightly as the midwives only talked about 'don't go in til your contractions are every 5mins for at least an hour'........ I was fully dilated in about 3 hrs but had a long pushing stage.
If your contractions came really close together in your first labour, what happened in your second labour? Was it the same or totally different? Did you stay at home longer in your second labour despite the contractions being really close together?