Donny,
I've always thought a Yamaha Digitech collaboration would be a natural since Yamaha's VH2 is really sub par. If money were no object a PAx3 would definitely be the logical choice.
God Bless,
Don
P.S. In recording, I agree doing it for real is always an option. I get a lot of practice with that in church. Often the songs will be keyed lower so I make up a harmony in order to sing more comfortably.
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God Bless,
Don