Honestly i was definitely convinced that it was an app error. That is way too much difference.... but all the other racquets are measuring fine... If i tap on the strings I can also hear quite a lower pitch (looser) sound on the blade vs let's say gravity tour that i have (also 18x20). Again app measures that Gravity Tour is around 49lbs which is what i asked...
The app that i thought had really good reviews was TennisTension in google play store... (android app).. there could be one for apple as well but i am not sure... I have a conspiracy theory about all this tension stuff......
2 weeks ago I called the local tennis shop and asked to see when they are getting the Blades in.. they said not till September... then i went ahead and ordered online... when i got the racquets, I asked my wife to drop them off at the local shop (she works close to it) and the owner was there and giving her hard time about me not getting the racquets there.. (she did not know that they told me september date).. so i am wondering if I was sabotaged ??