I haven't thought much about the PT100 taking the test; mostly about using it for scoring. On page 5 of the manual it mentions that in octave 3 measurements can only be taken to the second partial. (on the Yamaha, octave 3 starts at note A25). That is a problem since from C28 to A37 the PT100 can not measure the fourth partial which is necessary when scoring the exam. I use the PT100 myself in tuning and have found it very useful. Just thought I would mention that one point. I am sure it would do very well on the exam. It would probably have a few points off in the high treble because it is set to stretch beyond a 2:1 octave. Fred Yonley RPT
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