Came up from Vientiane to Pha Tang in a 4WD on the 2nd. There are some nasty sections once you get into the hills where the tar has lifted leaving gravel and some deep suspension - testing potholes. Most are easily seen but one or two are just after the apexes of corners and come up on you pretty quickly. Something else to watch out for apart from the dogs, pigs, buffalo, turkeys, chickens, cows, ducks and kids!!!