the fastest we ever sailed was two weeks ago in maybe 10 knots of wind. We had the spin pole just a couple of inches off the forestay and the apparent wind maybe ten degrees before the beam.
The fastest the PO of our boat claims to have ever had her was 11 kts
on a close reach with a chute in 20+ kts of wind. He had lots
of meat on the rail.
Hull speed of our boat is 6.7 kts.