I can confirm that Triplanar sells spacers that are 1/4". I use two of them under mine to bring the arm up to the proper level for my JVC TT-81 on the CL-P2 plinth. Put it at just the right height for the VTA adjustment to be useful in both directions. Definitely worth the money for parts that fit perfectly.
Questions Regarding Installing a Wheaton Triplanar On A SOTA Cosmos
As luck would have it I recently acquired a Wheaton Triplanar VII U2, and am waiting on it being shipped. So at this point I am trying to decide what the most favorable table to mount it on, and what arm gets replaced. I have a SOTA Cosmos Eclipse with a SME V on it, and that would be my preferred place to install it. The only thing is this Triplanar has the arm cable extending out the back of the arm pillar instead of routed out the bottom of it. I have to assume the cable is going to have to be routed on top of the arm board and then over the edge into the body of the Cosmos. Not wild about that but do not see any other options other than drilling a 1/4 hole and routing the cable through it. Anyone have any experiences to share if they have installed it on a SOTA table?
My second alternative is to put the arm on my Scheu in place of a Dynavector DV505 I have. That is certainly a straightforward option, with no issues to be solved. However, I have never been fond of the SME V on the SOTA, so this would be my first choice.