Many Thanks for all the nice compliments
I like to say that Vaquero MD is more like an advanced high tech with old school knobs and switches equipment.
The settings are easy, threshold just ON in All Metal Mode, Sensitivity to 7-8, Ground Balance, then switch to Disc mode (iron), start hunting !
When I detected the gold coin, the sound just seemed normal (using a headset) for a coin like object.
I think the pin point for the Vaquero is just GREAT. Although there is a Pinpoint button feature, I find just "X-ing" over the target will locate it in the circle of the search coil.
In the meantime, I found out this 1881 $5 gold coin, in its condition, is considered a "common date" coin and therefore is basically worth gold bullion value and at a 1/4 ounce content, it is worth about $300.
BTW, Yes !! I did try to find the owner of the gold coin but ran into a dead end after searching for about a second