"So who are you going to listen to? The experienced pilots who have weighed
in here or the inexperienced ones?

Jeff Edwards"

Jeff,
   I'm experienced (14,000+ hours, ATP and major airline Captain) and I
agree with the comments made about the vac/electric combo.  In fact, that's
what I put in my ES.  I'd go all electric if I had to do it over again, but
only due to a simpler installation and ease of future removal- NOT due to
reliability issues.
   Does my opinion count?
   Skip Slater
   95% IO=540 ES