RyanGi- oh, I'll for sure read the manual!  I'm too new to all this to try to figure it out on my own.  

In the video, he notes that on the 500, the tool must be on when changing the width.  Sort of neat to be able to adjust that (he gave examples of when different settings might be helpful).

Hoping the connection to my shop vac setup is simple.  Splintergroup, you have me hopeful that I'll actually have the right fittings.