Ann: A$9.1m Placement and A$3m Share Purchase Plan-S2R.AX, page-22

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They will put a few drill holes directly down straight through it first thing and then I'll be waiting for the halt.
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I reckon you're correct. Those current 100-150m holes look like the limit of reliable drilling for smaller tracked rigs. I reckon the drilling delay on Monsoon until the end of August is because they will need to source a larger rig that is capable of accurately punching out 300-400m holes rather than these smaller 100-150m holes that they've been drilling so far. Just a guess... what would I know...