thedoor said..I had a pretty nice session yesterday
Board: slingshot freestyle 115
Sail: Hot sails maui speed freak 6.5
Initially, I went out with the infinity 76 and was doing very well (wind was probably 12-17 mph), but it started to pick up so went in to add some downhaul. It continued to pick up (maybe 20-25 mph) so I went in and switched down to infinity 65. Below is the gps graphs for all three sessions. I am pretty certain I am at top speed on the i76 (about 16knots). I am less experienced on the i65, but was able to hit 18 knots a few times and might have hit 20 knots once briefly.
I was out from about 9.30 to 11.30 am but the wind sensor is on the beach so obviously there is considerably more wind on the water, but you can get a sense of the wind trend at least.
PS: 18 knots feels hecka lot faster than 16 knots

You should easily get another couple of knots from each wing.
I was getting about 20 knots from the 76 and 22 from the 65 most sessions, without pushing it.
Surprisingly, even 20 knot short boosts downwind on the 76 in marginal 10-14 knot gusty breezes.
Max speeds were 23.6 (76) and 24.4 (65) knots in biggish swells.
I think you could get another knot or 2 on flat water, but it's definitely not race kit and the overall drag (from mast, fuse, rear wing, holes etc) becomes obvious.
Frothing to see if the carbon Phantasm mast is more slippery