Yeah, I've had some pretty tiny boys as well. One of the neat things about hissers is seeing how much they vary individually.
As for starting a colony, I started out with a few not sure if I wanted a colony, but honestly the descicion to start a colony was one I don't regret at all. Just make sure to separate the male and females when you have a decent amount of each (mine hover around 20-30 of each, plus the nymphs that I keep with my girls).
They're pretty fun to have around and watch/listen to, not to mention are a decent way to dispose of overripe produce. Males are definitely more boustrus than females, though females are better for handling IMHO due to being calmer.
Welcome to the hobby, and good luck with your hissers!