Non-Equal Temperaments

[Corte Swearingen]

Hello List,

I have a beginner's question regarding unequal temperaments.  I own a
Verituner and have been using the Coleman 11 temperament for a while.  I
don't have a lot of experience with too many alternate temperaments but
I've heard a lot of good things on the Coleman 11 so I've just been using
it as my temperament of choice.

My question is this.  I'm wondering if unequal temperaments tend to sound
like they are going out of tune quicker than equal temperament.  My
reasoning is that if some of the notes are already altered from equal
temperament, isn't there less of a "window" of pitch shift before the piano
starts to sound out of tune?  Does this seem to be a valid question and/or
concern?

By the way, on a somewhat different subject, I've tried those new
pitch-lock couplers - the ones that couple two of the strings of a
three-string unison.  I have very definite opinions on them but would be
curious if anyone else has tried them.

Thanks for your response.

Corte Swearingen
Chicago