gold cup

I was reading through the SCAA jan/feb mag about the " gold cup" and thinking about my newest customer ( wholesale). In his resturaunt he was using about 6.25oz per 1.5 gallons. NO wonder the coffee tasted crappy
and I got the acct. Anyway If I was to raise the amt to: 9.75 oz coffee per 1.5 gallons..he's come unglued. Take a look at the SCAA brewing COntrol Chart and let me know your opinions.

Thanks, and you know the cofffee tastes prestty really good at 7.00 oz per 1.5 gallons.

Is the golden cup realistic for a resturaunt?
I really am happy about my new acct its worth about 100lbs per week on avg...... :)