ok guess what. profiles can't be dynamic. the "dynamic" thing in property is fake. i rebuilt corridor it doesn't change.
so DO NOT USE!!!
you need to make sure the things you say first before saying it.
Work: Xeon W3503, 12GB, Quadro 2000, Dell 19' x 2
Home: 3930k, 16GB, GTX 590, Dell U3011
1 - Create corridor using EG Profile and vertical offset assembly <- Dynamic
2 - Create surface from Corridor
3 - Create profile from Corridor SURFACE
Maitland, NSW, Australia
Windows 7 Enterprise 64bit
Intel core i7 2600 @ 3.40 GHz with 16GB Ram
Civil 3d 2013 64bit