Hi I've run my silver umax for about 2 years, and run an at pro just long enough to decide that I'm preferential to Tesoros, (better part of a year). I bought a used Eldorado (plastic) about two weeks ago and am just getting into it. From what I can tell the discrimination is excellent, I've found a few nickels that dropped out exactly at the proper spot on the dial an tonight I found one of the late model quarter sized dollars dad lost in their yard. The GB'ing is pretty straightforward and no surprises there. Deepest coin so far has been about three inches but that's due to limited time on it so far. I tend to hunt with the silver umax with the disc just above iron and play with that setting as I hit targets, and that's what I'm doing with the El so far. What kind of depth can I expect with this machine running the stock 9x8 white spoked coil? Thanks, Tim