Contiguous Major Thirds Accuracy?

[David Boyce]

David, you wrote "When I was a strict aural tuner ....."

Ah David, I bet you're not strict at all now, I bet you're just an old 
softie at heart.....

(I can kinda see you in times of yore, glaring menacingly at the 
recalcitrant piano and its owner through your pince-nez spectacles and 
hefting your tuning lever in a menacing manner....)

Best,

David.