If true, it would be a sad development.
While the technology has gotten splashier by becoming digitized, the actual advancements have been limited. TIDs and tones have their limitations, often severe limitations. Manufacturers are often repackaging existing technology in a new box with some minor tweaks, and many hobbyists slavishly fall for the advertising hoping for the same thing we all want: dig minimal trash and almost all good targets. The phiosopher's stone of metal detecting.
Problem is, that technology doesn't exist. Sure, people will brag, "Oh, I dig almost no trash now thanks to my 'Whozewhatzit 4000' and its super accurate target id!"
Yeah well, you may not be digging much trash, but do you have any idea how many good targets you're bypassing due to the limited ability of your great TID? Here's a hint: the answer is a lot.
Of course, suggesting such a thing will cause most heads to split open in rage. Which is understandable considering how much people pay for those high end TIDs.
And while the packaging is getting flashier, the quality of the construction on many detectors models I see are sliding significantly downward from what I saw in the 1990's. That is an undeniable shift, but considering the lifespan of the digital technology running detectors now, perhaps they are designed to fall apart at the same time the electronics start to break down. Hard to say at this point.
And then there is lonely little Tesoro, who never jumped on that band wagon and went on about their business because they knew much of what was being done was a lot of smoke and mirrors. Tesoro, who understood that the basics of the technology have not leapt forward in the last twenty years and that the best single key to find targets is to beep and dig usng as little discrimination as you can tolerate. Just like they were doing in the 60's and 70's. Of course, we can go deeper now than they could and our recovery periods are better, but the principals remain the same. Marketing departments hate to hear this, of course, but I tend to hate marketers anyway, so no problem on my end.
Of course, I also get told that "We're just looking for a little but more information to help us decide!" Funny how much information you get from that single tone on a Tesoro, once you've actually spent enough time to really learn the machine and not replace your detector every six months. I highly doubt any TID could tell you more. Some would argue otherwise. Go for it. Personal experience has taught me otherwise.
Can't fault Monty's analysis, but its a shame if he's right. It would mean Tesoro would fail for all the wrong reasons and the blame would rest squarely with us. We keep chasing rainbows it seems.
The best advancements in the last decade I can see is recovery speed and the use of multiple frequencies to cancel out the effects of salt water. If one wants to argue Tesoro needs to focus on those two advancements, then I can understand some basis there. But "give me a pretty screen with lots of icons" just doesn't hold much water with me. But maybe I'm in the minority. Probably. I usually am.