Retopflow: 1.х vs. 2.х

I tryed use version 2.0 beta and i condused, becouse then I use Polystrips in 2.0 version, i cant continue use previous maked parts, like it was in 1.x version. Or I something I do not understand?
And, in 1.x, I just want do two things - indicate source and target object, and it work nearly perfect. In 2.0 I have some bugs, like moving vertex somewhere else then my “source” object surface (like normal and away path).

2.0 is in beta and under heavy development (daily commits). If you find a reproducible bug you could report it at