5/10 is amazingly soft. One thing that you have to realize is that the quality of a table isn't only vpip numbers. Some of the fish at 5/10 and 3/6 are disguised as good players, (17 vpip) but they play absolutely horrible post flop. That being said, you should be able to find plenty of 3/6 full games with a couple people with vpips higher than 50.