I was having an interesting discussion with another builder (an RV guy) on the differences between various controls approaches. We were mostly bantering about different failure modes and what happens if the failure were realized. So, we got to discuss the nature of the BD-4C anti-servo trim tab on the stabilator. Here, the failure mode was the jamming of the control cable back to the cockpit (hence, the inability to change the pitch angle of the trim tab). The hypothesis is that such a failure condition would be insignificant to safe flight, as the pitch angle of the stabilator can be adjusted to overcome the non-operable trim. Not being 100 percent certain on this, any thoughts from the group?