At least here your results don’t seem to depend on optimizing your approach and faffing about on the boat over and over, trying to hit the value that gives you the best chance to hit the thing you want, with a risk of self-sabotage if you don’t go the extra mile to figure out the math, as with FotZ. Just keep digging/supplying and eventually the items should come to you. Given how quickly it seems to happen on average, I don’t foresee many players having serious difficulty finding all the gear.