Just finished adding a Forespar motor lift to my C-310 to lift my Nissan 4-stroke. I am very impressed by the build quality and ease of installation. The only thing I changed was to upgrade from a single block to a double to make it easier to lift. If you buy a forespar be warned that although they supply the sheaves to make it a double the included line is not long enough. I wound up spending an additional $80.00 on a Harken block and some 3/8 Sta-Set line. This thing makes it very easy to lift an 82lb four stroke and I can launch and retreive it myself with no additional help....