Its normal,as a GEO goes out to the area and try to handpick the...

Its normal,as a GEO goes out to the area and try to handpick the most promissing rocks. Much of the higher grade stuffs can be seen thanks to alteration,color anomalies,High sulphidation and what not,so a GEO able to hand pick particularly promissing rocks in such excercise. Some rocks meet the GEO high grade expectation,some not,and so Drilling later in the same area can result in rather mediocre results comparably.

There is also ways to mitigate to release of over promissing results,by doing sistematic exploration,by walking trough with GPS "straight" lines and every 10-25-50-100etc.. meter you pick up a rock which represent the underlying bed rock characteristic, by doing this you get more of a representative results with less chances of super high grade finds,but this way the drilling have lower chances to dissapoint.

Sadly as a Junior miner with some random tenements without a resource you cant help but often abuse rock chip sampling to create attention and stock price buzz. Exploration is a super high risk and very capital intensive business with relativelly low rate of mining viable resource find.
Literally one in few 1000 exploration tenements will ever deliver a mineable resource which have the grades,size and geometrical characteristic to eventually make it a mine.

We luckily got already a respectable resource in size which is rather rare these days to find, and we will be able to grow it meaningfully in the coming years.