Does anyone know where The "CG" is for a rear tank 203? I am trying to assess the weight impact of adding approximate 60 pounds to the transome of 'the Champ' with the dual power poles. With the rear fuel tank in my 203, I would have to think the CG balance point has to be in the cockpit/ seating area. Since people are the bulk of the load I would think they would have that load on the CG point to minimize rear load.