[quote markg]Using the Vaquero or Tejon
Various coils...
Stock
5.75 concentric
10 x 12 wide scan
Clean sweep
Sweep speed importance!
Slow or fast
If to slow, then what will happen
If to fast, then what will happen[/quote]ALL motion-based discriminators will have a sweep speed variance with different size and/or type coils. Tesoro models have always been classified as a slow-motion, quick-response design, and they are to this day. White's has had fast-motion discriminators, such as the DFX, XLT, XL Pro and all the former 5900 and 6000 series, although they could be considered moderate-to-fast by comparison, while White's MXT, M6, Classic series and Prizm models are slow-motion types.
I've found that a widescan coil ALLOWS you to sweep slower than a concentric, and that is one reason why they can excel in trashier environments. A smaller coil ALLOWS you to sweep slower than a standard coil, which is why I like to use smaller coils to better work in a trashier environment. The ability to sweep slower than 'normal' is most noticeable when using a smaller-than-stock coil on a faster-sweep models such as an XLT or XL Pro.
It is important to learn each detector and coil combination to determine the optimum sweep speed. It is especially going to depend upon the ground mineral environment and the trash content at a site. You should always sweep slower in a trashier environment to eliminate masking which can occur if you're not give the detector's circuitry time to process each target signal.
Also, you should not sweep a slow-motion detector too fast. In a rather non-issue woodchip playground you can sweep a little faster than normally allowed. In a highly mineralized environment, the slow-motion models must not be swept too quickly or they might lose depth or total responsiveness as there's too much ground signal fed in to process both the ground and target signals.
In the end, with any Tesoro, a comfortable, slow sweep is going to be most efficient.
Monte
