Again thanks for the comments - I'm eating this up!
Stasys - I do have to try long in TTF. I didn't think of it. And Tom says that too. I'll have to try that, I was just worried with all the iron I'd hear a bunch of "looooong" iron. But even if I do, the high tone will be longer. The detector goes to auto 29 no problem at a lot of this site. So, I'll disagree with you on manual 30 being too much. Watch the video, I could have easily missed that target in auto. And, I've tested other 7" or 8" targets in auto vs manual 30 and (in this 1% iron mineralized and iron laden site) the auto sens +3 OFTEN missed the deeper targets or the signal was cut in half (one way and not two, like in this video (on one plane I mean)).
Tom - Yes, I see what you mean about trying it in a less iron dense area (at least for learning and getting my ears hearing it). And as Goes4Ever says, his ears are trained for it. I totally agree with discriminate being able to go faster and of course using discrim in TTF would do the same thing I think, but defeating the purpose I imagine. Will be trying long!
Goes4Ever - Honestly, and understand before filming I went through the motions with the target. That target stood out much much better in conductive. But, again, like you said, your ears are trained for it. I did hear it but hearing quiet and then a beep is a lot easier than hearing a beep inside of iron. I mean there was almost no pause between the iron and beep. When I went really slow the beep in TTF wasn't really there, so that tells me I have to be careful. But, this was just one target. Notice my sweeps included long sweeps in conductive not just the short "check me" sweeps ;-) I agree it's powerful and my ears have to learn it. I am careful as you can see in saying TTF isn't good. I am clearly learning it on this machine. But, I do prefer a more quiet hunt. You know what I mean - After a noisy hunt you can get that "hunt sound" in your ears - I don't like that!
As usual, very much appreciated and I think these discussions are helping lots of us, even Stasys

Take care guys,
Albert
ps - Goes4ever - I was at your site last night and liked you comparison of deep on with/out fast on (think that was at your site too or minelab forums), on a quarter, silver dime and penny. Since you have a garden, could you test and post the results of
deep off AND fast off on the ID's? That is the only combination you left out. I am really curious to see that one as I think I will try running it. What is interesting is deep on has extra filtering and fast on has LESS filtering. I'd almost think to get the purest signal, to run deep off and fast on - but running fast on risks missing deeper (shortened) signals. In your test that was the best result!