Suppose we have almost calibrated exact Lagrangian objects $L_{1},L_{2},L$, fitting into a distinguished triangle $L_{1}\to L\to L_{2}\to L_{1}[1]$, and satisfies the destabilizing condition

$$\hat{\theta}_{1}=\arg\int_{L_{1}}\Omega>\hat{\theta}_{2}=\arg\int_{L_{2}}\Omega.$$

Then the phase angle inequality (31) follows. In particular, the derived category class of $L$ admits no special Lagrangian representative.