I’m not understanding how they work against each other since the SS spring front half is not supposed to twist into an S shape with its extra springs. The Caltracs are a limiter of this.
I don't understand either. But what I heard from a Calvert rep at the races (winternats and world finals) is that the combination is not recommended.
Edit: my guess? The very stiff front segment restricts movement and leverage, of the caltrac bars.