I've had a Topper for over 20 years and sailed it on Fitzroy Dam in the Southern Highlands NSW Australia as well as Jervis Bay. At club level I won the Commodores Cup against a mixed fleet including Lasers & cat's. In some races I won outright and not just on handicap. They are very forgiving boats too, In a Sail for Cancer race on Jervis Bay the they got the weather forecast wrong predicting 20 knot winds, by the first mark it had picked up to 30 knots (no problem for the Topper as they can be easily reefed). By the second mark the winds were gale-force. Out of 60 boats in the race mine was the only small boat to complete the race.