You can, but that Smilemaker (I20) GPS was only recording one point every 10 or 15 sec so the tracks look very smoothed out...you miss all the tacking/gybing performance details. On the Tornado tracks we were recording at 1 sec intervals...you can actually see oscillations as we hit waves every other second.

Paths the same as the first one...File names for R1-R3 are: MidWin-09-R1.gpx ; MidWin-09-R2.gpx ; MidWin-09-R3.gpx