401 birch or slate?


What sounds better as a plinth for a Garrard 401? Birch ply or 30mm slate?

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@dover Love hearing about your endeavors. The brass kit looks serious along with the price. Shaun D. at Peak HiFi told me the brass lends a warmer and more organic sound. I'm happy with the aluminium but would like to try the stainless steel. 
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I have a virgin AG 401 flat strobe in a box and not sure what I want to do with it. Use it upstairs in a small plinth with a 9" arm for background music, or build another 12" and load it up with the good stuff. What type of plinth? Panzer, bamboo, quartz, slate, open skeletal etc?
@boxer12  Thanks!

It will be interesting to try the slightly bigger and heavier PAC platter that's on order over the SMD one on it currently.
PAC - 317mm +900grams
SMD - 304mm +420 grams