First 5 (and all the 5s thereafter)

I'm writing and practising my first 5 min set which will hopefully be in about a week. My question is, do you see a 5 minute set as a miniature set where you'd hit a few different topics OR more like if it was five minutes cut out of a longer set, where you might only talk about one topic and all the jokes are about that? Pros and cons? Thank you.