Stu, I agree with you that the added weight is not the best solution and adding a larger battery would help the list situation but not the bow down problem. The C309 shares the same hull as the C310 but with a different interior layout. 309's have the head, holding tank, galley, and cockpit storage locker all on the port side. The only weight on the starboard side is the batteries, and fuel tank. 310's have a rear head on port and starboard galley and more of the weight is toward the stern which is better balanced. I think Catalina made design error and I hope they corrected it by changing the slope of the sole when they redesigned the cockpit mold for the C315. The only other way to solve the water issue without added weight would be add a drain in the low spot but that may cause problems in the aft cabin. I just use a broom to sweep the remaining water out the stern.