The problem I see with a sliding scale is that the customer can't confirm the criteria for setting the price. To them it will seem either arbitrary, or based on their presumed ability to pay after you've looked them over. People don't generally like being at the mercy of what looks to them like the random whims of "service" people. If they know the base price when the appointment is made, and the flat rate pitch raise charge if it proves to be necessary, they have already made their peace with the invoice total before the appointment is even booked. Unless you're the lowest priced tuner around, or the only one, credibility is what keeps you in business. Ron N
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