I added the histogram of flown distances on a per-glider basis.
http://www.gliderreview.com/
Now you can get into the details of how each glider is used by crosscountry pilots. When data are not too many you can even know the location which every single flight took off from, in order to get a better intepretation of the average flown distance.
Enjoy this new feature and, please, submit your review! I am eager to know what you know and *how you feel* about your glider!
http://www.gliderreview.com/write-a-review
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Jacopo