Congradulations on your countries recent election of a new president. I hope this means a new direction for your country, less socializm and more sanity...
Concerning your interest in "tuning" your CNC machines:
"I would recommend, working closely with your CNC machine builder on this as they should have the expertise to do this"
There is a lot that can go wrong when changing parameters for servo tuning.
You don't want unintended consequences that can really ruin your day.
I can tell you this, that without using AICC or HPCC your Fanuc control cannot feed accuratly at high feed rates. This is a fact.