Thanks for the info! I remember there were ways to refit a nautiloid with standard helms in 2e, but even then, why the effort when you can grow the ship and use the extended features of series helms? I also didn't know that Shadowheart could beach the craft as well. I assumed it for my Tav, since she is Gith too, but Lae'zel was the only character with sufficient movement left. It makes sense since she was trained for the mission.
