Ever watch the breakaways going round the Champs Elysees on the final stage of the Tour? Though the main carriageway is cobbled, there's a smooth, paved gutter- beside a 6 in high kerb!
Impressive - and it scares the shoot out of me just to watch it. On reflection though, at least the Champs is swept for the big day and free from potholes and other traffic.
So I think the OP is probaly scarier!
+1 for 3 ft.
With minimum swerving HOLD YOUR LINE!
Worth checking, on regular single carriageways that is, for oncoming traffic. If there's nothing approaching from in front, then anything coming up behind you has the whole of the road to get past.
(Worth remembering that the faster you're travelling the more your swerve around the pothole/debris will be straightened out.)
Sometimes, with traffic both directions and no room on the inside of the problem, you just have to take your weight off your bum and hands even if you cant bunny-hop the problem.
AND HOLD YOUR LINE.
Though, there will always be the occasional long vehicle which will take you into the kerb when it's half way past.
And that's when you need the 3 ft.