Czary,

Nice craftsmanship.

In your design CAM arms are too inclined, what created an pronounce "V" in the center position, so the follower bearing chock with opposite CAM arm, creating the defined center - tactile and perhaps audible.

For have an clear center - what is desired only for helicopter flights, because as penalty you have no more an absolute center, the circumference created by the two CAM arms need be slight big than follower bearing circumference.

Baur CAM profiles have models with "hard" center - but not hard like in your design, "soft" center, and "clear"center.