So...no comparative data to back up your claim, then? It's one thing to say you have a great compass. It's quite another to claim to have the "first and only accurate digital compass" when lots of other pieces of hardware have great digital compasses.
yes, "first and only accurate digital compass" is quoted from instructors (like above) and testers, me personally could compare only to Xeo and X1 since still own these, truly no comparison there, response time and accuracy of the BLACK is visible even in very simple navigation
again, feel free to be the judge and post your opinion here