Just a shameless bump to try and level the playing field :P To reiterate, the refill mechanic for sups is NOT 16 days. If you want to try and work it out try starting 15 days after a spot is completely depleted. Ofc you need to know the time and date for that, but even if you don't know, for many mats you can make an educated guess. The fun part is that you can never be certain that a mat has refilled and been dug by another digger, or still to refill.
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