The same as Figure B1, but the case of the outer one-arm initial conditions. Left: setup-4, in which debris particles are initially concentrated in a single localized cluster on the same branch. Middle: setup-5, in which debris particles are uniformly distributed along the q = a_col branch. Right: setup-6, in which two localized clusters are initially placed at two distinct locations along the q = a_col branch. The blue curves indicate constant a_eq, or equivalently constant-angular-momentum contours passing through the reference points (a, e) on the a_col = a(1 − e) branch with e = 0.0, 0.3, and 0.65, respectively. The intersections of these curves with the e = 0 axis give the corresponding equivalent circular radii a_eq = a(1 − e²) in the coplanar limit.