I'm with "Beat Ups". Circling approaches can be dangerous to say the least. If you are unfamiliar with the aerodrome, right on the minima, at night or in any way committed to circling then the safety barriers are quickly been eroded. If you don't fly too close to the ground you can't hit it. Many crash comics talk about IFR approaches that end in disaster after a circling approach. A place like Avalon is a lot safer because ATC can tell you what approaches have been successful but if you are on your own in the sticks or after hours then alternates are life savers!!!