Yup, right about 2 months after I posted pics of the one I made in 11/09... LOL
The main difference between the two is the one I made is a two piece design that has an attached collar that still uses the rubber boot on the filter vs removing the collar and bolting it to the back of the filter itself.
But... neither of us was the first one to use the spectre filter on a VTX by any means, there was already a few guys using them. I liked the look of the filter but I just didn't like the idea of using some glued plastic or a PVC pipe end cap as the mount so I made one with steel then switched to aluminum after people started asking me to make them one.
Edit: If anyone is going to try you're hand at making one, the biggest tip I can offer is that you don't want to make the filter centered on the carb. It has to be off set below the carb throat so it will clear the tank, if you center it it will rub on the tank seam