Old thread as far as original question, but I have asked the following question to someone pretty high up in the Kuzma hierarchy. Would the 313 REF arm be overkill for the Stabi S or S-12? I was told a customer uses a Stabi S with the Air Line arm. Given that answer, I left it at that. Then I mentioned I am considering pairing the 313 Non-Vta arm with the Stabi S-12. While this was not discouraged, the option of the 313 VTA with the standard size Stabi S was mentioned. I’m hoping this thread takes off a bit. The Tekton double Impact thread has over 14,000 posts (-: