Thanks man! Btw, is there any easy methodic way to determine AoB? I mean u-boat isnt AT 90 to the target and maybe moving a bit... The problem with charting is it takes quite a bit and you need to start watch everytime you beguin. Is there any easy way to startwatch? Short key? How to i put the ruler on top of an existing ruler line? also the ruler distances seem to be wrong. GWX really helps alot targeting under 1500m but still need easy way to AoB. Thanks