[pianotech] billing dilemma with pitch raises

[David Nereson]

    Most tunings take me an hour and a half.  And for that 
amount of time I charge $X.
    But often, after a pitch raise, which gets the piano pretty 
close to being in tune, the final fine tuning only takes an 
hour.
    Say the pitch raise took 1/2 hr, and the final tuning an 
hour.  That's an hour an a half.  How do I now justify charging 
extra for the pitch raise when a "plain vanilla" tuning also 
takes an hour and a half and I only charge $X for it?
   Or to look at it another way, if you charge $X per hour and 
base your tuning fee on that, then go do a tuning and pitch 
raise that only takes 1 1/2 hrs., but you still charge extra for 
the pitch raise, then now you're charging more than $X per hour.
    --David Nereson, RPT