I wrote a long discussion on this then accidentally deleted it thanks to the crappy touchpad on my Dell laptop. Man I hate this thing sometimes.

In short, I'm one of the guys mentioned from ExPo. I was running the spacers and took them back off. I did have a cross axle error but the spacers were not the root cause of it. The biggest problem with the spacers revolves around the limit straps. Until I can come up with a better solution to that I won't be putting them back on.