I know what cam lean is, its just I don't see much on my bows! I'll take pics of mine to show if I have too, "to me its not important". I have no problems with my Aliens, I just love how they shoot, period.
As Joel stated its overrated.
At a local dealer where I live I seen a guy bring a Martin bow in that looked like a recurve but had cams with the x system or yoke on both and wondered why its not utilized now?
It must not be a big issue as there are problems occurring, sorry for sounding like a newb!