Tech support going downhill...

[ksb51rl]

A basic rule of technical support: assume the customer knows nothing.
As Mr. Porfert stated, with evidence that the customer is experienced, thorough, careful, etc., the time required to reach a good rapport can be lessened.
Then again - speaking as a customer - sometimes the customer is not as sharp as he could be or would be at other times.
But let me get this straight: "going downhill" = spending a little more time on basic troubleshooting? Because when I read the title I was thinking you were told off, cursed at, given horrendously wrong information, or got advice that caused an ESC & motor fireball.
Did the technicians help you with your problems in the end?