If you're here and genuinely interested in learning, I would take that as a good sign.

A densitometer makes your life easier and more efficient, and efficiency is related to profit, but as long as you're committed to getting good results with no excuses, the customer shouldn't object to your using trial and error.

Maybe I wouldn't be so out there, though, using your company name as your userid. It would be more friendly and personable in any case to use your name!