Hi
You must know that every detected signal by device like Mineroo not true signal infact in real treasure field there are many things that may give you mistake signal if you want to buy a long range locator Thomas Gravitator or PMRIII of Anderson rods give you better results with less Mistake .
you must know all about soil condition and effect of ground electromagnetic field.
always check your result by a pulseInduction detector . I test many of them and Lorenz DeepMax is the best .
You can trust result of lorenz but alway before drill a deep well search near surface (to .5 meters deep of ground surface) by a 25 cm (Diameter) coil or a metal detector like explorer Minelab for finding junks.
it's very important because signal of junks and little metals near surface that they don't so far of each other is like a good treasure in deep.
Cheers