This article shows you how to use SeeYou to check out your flight and improve your technique.


http://www.jamescooper.com.au/Gliding/Flight Analasis using Flight Recorders.pdf

Rule 3. Leave the thermal when it becomes the strength of the next
thermal that you will climb in. What so often happens with novice pilots is that
they stay in a thermal until it reaches the top. Rather than when it begins to
loose its strength. Again we can look at a couple of traces in Fig 6.


The chart Figure 10 shows the angle of diversion from track against the extra
distance flown. So we can see up to 15° diversion gives virtually no extra
distance to fly but once we start to divert any more we need to start to be
expecting to get a thermal that will increase the cross country speed by that
amount. But remember that sometimes a diversion is necessary to just to stay in
the air.