Managed to get over to the coast for a play before Xmas. Was following a wee pay streak from last time over there but unfortunately it fizzled out a bit (hourly rate wise)…
I think the main reason it fizzled a bit was that the bedrock dropped too deep and was taking too long to push forward with the 4" as wasn’t chewing through all the overburden quick enough. Bedrock had dropped to about 2 meters, almost all overburden to a few inches below the stream. Dug quite an impressive hole though!