[Alex]

Have you played with different settings on the Solidworks Plugin? There is a setting called "Mix Normals Tolerance" which might solve your problem.
//m.sinclairbody.com/doc/en/Plugin-SolidWo...SWSettings

By the way, you do not have to create a curve follow project for every curve you have, you can select multiple curves with a simple curve follow project by clicking on them consecutively.