Admittedly, the range of parameter space explored by our fiducial models is not comprehensive. While those models were chosen to favor the production of long tidal tails, it may be possible that unanticipated dynamics could make other types of encounters good candidates for tail-making. Two factors contribute to the weaker tails in the massive halo mergers: faster encounter speeds and deeper potential wells. While the potential well is fixed by the choice of halo model, several ways of slowing down the encounter and ``re-tuning" the resonance between orbital and rotational angular velocity are possible. We now turn to some of these other encounters, focusing specifically on the massive halo galaxy models to see if these galaxies can form extended tidal tails under other conditions.