Laughable with all the new machines rolling out, all the bells and whistle and range of frequencies. Majority of those swinging SMF's touting how accurate the TID's are and then they tell ya they dig everything! Am I missing the logic there?
I suppose if your jogging through a park and just coin shooting accurate TID's are handy but almost irrelevant in old sites and relic hunting. ID number is just about useless in those conditions as you don't know what the target is and hunt by metal type and target size/depth.
If I could only have one machine it would be a Tesoro.