Re: do we worry to much about what our detector cant do rather than what it can?
What it CAN do is always more important.
Just got a White's Coinmaster Pro, after not using mine for almost 12 years. New machine WAY too sensitive: in all-metal mode, picking up tiny pieces of aluminum foil, like wadded-up gum wrapper, at 4 inches! Drove me battier than I already am.
Finally figures out how to deal with it. Turned down the sensitivity.
As for what it can do, it's already out-performed any White's I've had in the past. But there was a steep 3-week period learning that what I was heard was not where the detector said it was.
I believe my machine could find a 5 gram gold nugget at 3 inches deep. I took a $5 gold coin with me to test, and it started detecting the coin in the air at 7-8 inches away. Not that I plan on finding many $5 gold every day. But it's nice to know, don't you think?