Re: White's TDI
Ok for uses like beach and/or nuggets. But it would be very fishy for land hunting for coins/relics, IMHO. Sure, it *could* be done, since it has the ability to tell high verses low verses iron. But it is very fishy and hyper-sensitive for that task. And by the time you tweek the controls to loose iron, you may just find that you have thus reduced the depth down to where you're at about the same as various regular VLF coin machines, so you may just ask yourself "what have I gained?". JMHO
If they ever make a pulse machine that retains true progressive TID-type discrimination, down to the full length of the depth they reach, that would be interesting. But for now, on this machine, you will reduce your depth to about that of the Explorer, if you intended to pass iron, and tell highs vs lows. That's not a bad thing, mind you, because certainly there are other benefits you could be enjoying, even if you didn't push an inch or two deeper while effortlessly passing iron. Because sure, you will probably do better in nasty soils.
Put it this way, if the TDI is going to be an Explorer killer in the turf, you would certainly have seen legions of md'rs going that direction. So far, that hasn't happened. And yes, people have tried. Contrast this to when the explorers first started being seen in the turf, it didn't take long at all (within a few years) that people ...... when the cross-compared marked/flagged targets, to start ditching their other makes in favor of the Explorer, since they couldn't argue with the results. I do not see that happening with the TDI.
