Weird Day. Wind was South in the morning, switched to SW at lunch and I got to the lake about 2pm, looked just about ok for the medium slalom so rigged the 7m and set off.  Not enough to get going so came in immediately and reluctantly rigged the Formula. Light winds but good angle and flat water. Had a good cruise around for an hour and a bit, not lookinng at the GPS but  at the end was pleased to see some  decent speeds for this wind strength and location. Even managed a 20 knot alpha on the Formula, didn't think I'd see that!