I like the Samson a lot. I have the 4" maple slab under the table with the brass footers and isoblocks before the Samson. The brass footers gave me a bit more foundation to the bass as well as the isoblocks.
It's a bit tough to A/B with a table that weighs around 150lbs. I need to call a friend to help me move it. My wife claims a bad back. The whole combination of the mass of the OMA slate plinth and 301, mass of maple block and the extreme rigidity of the Samson has given the sound a rock-solid foundation that is unrivaled in my experience.
Plus, Pierre is a delight to work with. Knowledgeable and extremely friendly.