Possible Clues:

• Moves in a curve
• What you might lose on them, you could gain on the roundabouts
• Moves back and forth
• Isn't consistent
• In the ship there's equipment for flying to and fro
• What you lose on these, you'll gain on the roundabouts
• Wields a bat
• Hangs faction on board ship
• Sways
• Suspended seats