I just bought a new Kestrel to use with the Shooter app on my phone. I have a couple questions involving the setup and use of the Kestrel. First do i need to calibrate the Kestrel to a known alltitude so the baro pressure is correct or should it be good to go as is? Second after reading through the articles in this forum I should be using the station pressure option on the Shooter app to obtain accurate drop figures. Is this correct? I usually use a corrected pressure for my current altitude and go from there but wanted more accurated drops so I bought the Kestrel. Any help you guys can give on the subject would be great.