Jose,
Great looking ship. What prop, lines and lap time do you plan on starting with?
Jason,
Pusher prop does have some circular flow but the main advantage is that the torque acts to roll the ship out when up right thus counteracting the nose in pressesion on inside maneuvers and when inverted or on outside corners it tends to push the nose out which depending on the prop weight can be significant in giving a solid feel to those outside corners.
Best, DennisT