I'd agree with that Rich. Although I don't think the trajectory calculation is too far out because it tends to agree with my real world trajectory (once I've spent the time to get the input parameters correct) and has done on every gun I've ever owned.
Of course it's a whole other leap to assume that just because the trajectory calculation seems to give very similar answers to the real world, that doesn't necessarily follow that the wind calculation gives answers that are just as accurate. But those answers are impossible for me to prove or disprove because it would require testing facilities that no one I know has access to. ( Anyone have access to a 55 yard wind tunnel? )