Uncle Dave,
I too enjoy the "Four Freshmen" type harmony and I'm looking for a harmonizer to go along with my G1000. Which model of harmonizer do you use? By the way The Four Freshmen are still very active and have been continually since 1948. I just caught the latest incarnation of the group in concert last Thursday. WOW! They are something special. Also, they have a nice web site at
www.fourfreshmen.com