good progress, page-2

Thanks for the reminder S7, I read the report and it all sounds good. I am not sure how much it cost for the small ventilation shaft but if it was inexpensive and 1 cutter can work off 1 shaft, they might have done 3 shafts and got all 3 cutting machines going.....

....of course, its easy for me to say this from the comfort of my office chair - it takes me the whole day just to pull out a few weeds - nevermind dig a 600mm hole through solid rock!!