Way late, but I wanted to point out that the Mast-R-Lift II does not have the built-in dust port that the Mast-R-Lift Excel II has. I had an older Jessem Mast-R-Lift (Excel II I suppose) and bought a Mast-R-Lift II a while later. I only took the latter out of the box recently and was very surprised to discover that, which I have since confirmed with Jessem. I don't really understand the omission as they almost hide the fact the Excel II has it. Hope that might be useful to someone.