Re Hydra, ask specifically if the boat leaks and if so where from. These were fabricated out of many pieces and the topside seams tend to leak. Very well behaved and predictable. The mast is not so easy to put up single handed as the newer lighter 16 masts and cannot be upgraded to a twin trap as it tends to break. A propper sail boat though (not all cats are) which goes about on a dime and once trimmed correctly will give great fun.