2sec ave for the session was 29.9 trying to crack 30k when picked up by a bullet knocked out a 31 thats better
Next run wam what a gust in some short chop crap & a pritty reasonable crash ( not in the top 10 where you wind yourself) checked the GPS & WOW
yeah... nah...
In reality, you also need to delete the last data-point before the spike, as it will be tainted by the crash.
You didn't do 69kts although sometime it may feel like it in a good catapult. Simple physics... you are doing 30kt, board stops, you keep going (at 30) til you hit the water. Newtonian physics. Now if you had the gps on the top of the mast the GPS may get a decent speed...but that would be the gps speed not your speed. The display speed is a spike no doubt caused by loss of signal...