Example of a system with large inner eccentricity oscillations induced by three-body dynamical effects. Top: For each evolutionary time step, the maximum increase in the inner eccentricity is shown. During the first few time steps, the ZLK amplitudes are small, because at the start of the simulation the evolutionary time steps are very short. Bottom: Evolution of the eccentricity of the inner orbit during the first 0.5 Myr.