I agree. I believe WE the Designers and Engineers need to be able to 100% describe the geometry we want, and will get using a certain 3D shape (not 2D section), and that Pro/MANUFACTURING should only need to do whatever tool geometry and toolpath are needed to get that geometry. If we cannot produce the geometry we need on our end, how can we, at the asembly level, know if the geometry will work? These timing screws are being used essentially as barrel cams, so how could we accurately predict if the follower (roller follower, bottle, etc.) is able to follow the path we want?
I'd much rather be able to create the correct geometry, than have the manufacturing people have to guess what we really want.
If SW has this capability, Pro/E certainly should......and should have had it FIRST, to justify our spot on top (in price). But, hey, we DID get the ribbon instead, so....... 