I had the boat on Canandaigua Lake for the last two weeks, and on Saturday I had it up to about 6.5 kts or better in bursts (GPS), but typically held about 5.5 to 6.0 kts steady. Hull speed is about 6.4 kts, but it's a semi-planing hull, though the rig is small for a boat that size. Winds were out of the west, turning to WNW by the end of the day.
Would've had a higher sustained speed if I had the working jib on it, as we were heeling too much, which slows it down noticeably. A reef in the main would have helped, too. I kept the genoa and main full out mainly because there were many light-air lulls, and I didn't want to stop completely during them.

By the end of the trip, I had the genoa furled to about 60%, but the luff was very loose and baggy and hard to keep full without falling off.
Good day sailing, though. Probably the fastest sailing I've ever had in this boat. I'm surprised it sailed as well as it did, being what it is. I could have sailed the 16 mile length in about 3 hours or so, with the winds being sustained and as strong as they were.