This is great stuff grundle. My only concern prior to the last...

This is great stuff grundle.

My only concern prior to the last ANN was the potential for extension to the augers achieved depth - given the use of the words 'until refusal'..

I was cynical, because refusal can mean many things.

Very happy to see the word 'reached bedrock' as part of the souhern target auger work on one hole - clearly delineating between hitting bedrock and until refusal.

I liked OldGeos P70 rotary lie detector chances, he's always been very conservative in his views (must be an engineer!) and being a PM I'll perceive that P70 as P90