[Tropo-Bob (Bob)]

I have a Tak FC 100D. I purchased the clam secondhand and it did not come with a dovetail. Fortunately, the bolts holding the clam were the right spacing and size to screw directly onto one of my Vixen dovetails. However, only one dovetail was suitable. I have several Vixen dovetails and I do not know why this one was different.

I am looking for other dovetail/mounting options with my clam. How have others mounted their Tak clams to dovetails and what type was that?

I hope my question makes sense. See the attached image for my current setup.