1- yes, though the drip is a nuisance
2 - yes
3 - yes
4 - not sure, but probably. Most OBs like to keep things moving along pretty swiftly.
5 - probably, though I don't know as I've not had a natural labour. I did delay the sintocinon for a few hours after I had my waters broken and the contractions got a lot more intense, very quickly once that started.