FM radio is not really a good comaprison. The incoming radio signal is still a sine wave, but with the frquency constantly changing. This is then converted to an an audio frequency analogue signal, without (necessarily) a digital stage - it is never converted to and an on/off signal, whereas the output of a class D amp, or a PWM motor drive is.
(When I say output I mean the output from the switching devices)
Most modern motor drives have DSP controllers anyway. I really don't now if the Class D amps are DSP controlled or analogue.
Ah, that old chestnut again. I disagree with this because the output from the power amplifier side, in it's raw state is either on or off, hence digital, even if the cotrolling mechanism is analogue.
Not forgetting Class H, which switches to a higher power rail voltage when the demand calls for it. (thus reduces heat dissipation at lower output levels)
Surely if the body of the guitar is vibrating then the pickup will be vibrating with it, and this will be added into the movement between the pickup and the string. Pretty neigible though I'd have thought.
Just that the stretches are much easier on the 32", especially if "Double stopping". Eg trying to play a classic twelve bar thing up at the 12th fret (ie playing the guitar part) - I can do it on a32", but really struggle on a 34 inch, but everything is jsut that bit easier wherever you are on the neck.
Personally I find a very noticable difference between 32 & 34", much more that I expected.
String wise D'addario, Warwick, Newtone, and I thing Rotosound make Medium scale strings, and I'm sure there are many others.