Justin,
I have used Flexible Components with success, now that they have been fixed (for drawing mode) in WF5. Piece parts have the correct diameters for interference fits, but when put in the assembly, I usually make the hole diameters match the pin diameters. Since flexible components only change in the assembly in which they are flexed, the piece parts remain correct for their drawings, but interferences go away.
HTH,
Karl Krahmer
Mechanisms and Structural Systems
ESC - Team QNA
Kennedy Space Center, Florida 32899
Mail code ESC-643
OSB II, Cube 2113S1