"Its impossible to tell if your gaining altitude by simply watching your rc glider". Wow!

In that case it would be impossible to find thermals which would mean thermal contest do not exist!

This is very silly.... He told me this on the phone....He also cannot allow anyone else to manufacture products similar to his without trying to steal their customers thru slander. His quote was to refute another soaring method by saying its impossible to tell if the method worked. His quote is false.