In Addition Pierre ....I have a good mining friend that resides in Kamloops with his family for some 32 years now and he is a mining expert whom's experienced worldwide from everything from drilling within his early years and on up to being that of a mining consultant in management ( with now an impressive 53 years experience ) and he's still sought after and working. In case you may know of him? I will only share his first name on this public posting forum, as John.
He concurs with your thoughts.
John knows all about anything that's mining, open pit and/or underground block caving style etc. with worldwide experience. Thought I'd share that with you ....
" GoldBuyer "