earthmansurfer link=topic=8563.msg97347#msg97347 date=1326956857 said:
Martin - The first videos were with a RD of 90. Here in Europe the ground has more iron in general and 110 is a bit slow. In Europe - Some people with the V3i run a RD with the stock coil very very low like at 50! With correlate on a higher RD seems to benefit finds by giving the machine more time to look at the target. If you notice the V3i had problems with the target at the initial swing, with that swing there was iron to the left and you could see that. If anything, a slower recovery delay is in order and that is actually my plan. The place I am hunting is just to large to up it to 110 and hit it really slow. I go medium slow to medium minus and that is all I can handle.
I dropped the RD to 70 because from all of my testing (look at my past V3i only videos), running outside of correlate with a moderately trashy ground requires a slower delay (faster recovery speed). I say outside of correlate because on many of the deeper signals, best data is better than correlate. I have the span at 35 and ran it as wide as 45, and have tested it with success down to 25 - so I picked a middle ground.
The problem I am experiencing (not really a problem) is that people say Why didn't you try this... Well, if you think of the V3i and all it's controls, it just isn't humanly possible. I found one deep coin yesterday in 8 hours of hunting! I'd like to do more testing, but am I searching for that magic combination or maybe is the E-Trac just a bit more consistent in my ground? The problem would be if I didn't have the E-Trac to compare signals against, because then how would I have ever known? It's clear to me a test garden is not exactly the same and burying a fresh coin clearly isn't, though it aids with filter selection.
I will say on coins I have found down to 7, the V3i hits them VERY well for the most part. But beyond that it gets iffy, with one caveat. I checked the signal on the 7 silver coin ring I found and the V3i hit it hard, like it was shallow. I know it would have picked it up much deeper.
Thanks for your comments though. I do keep them in mind and usually try out what people suggest,
Albert