"and very speculative ... of course!!"

Isn't it a shame that has to be mentioned Tibber?, lol

Hits of 2 and even 3 veins should be possible. Note the 50m spacing in grid (i cut off the scale oops..)

I'm just playing here, but think they will set up on the south side of the veins, the orange lines being deeper holes.

Should look like a pin cushion in due time. Good luck drill bit!