Tony we multi tracked the female VH's took those tracks & used the VR toward the end when the brass modulation comes in and sang the bottom bass notes to give it a foundation with male "DOUBLE" voices almost like a mixed choir.The VR I have used in many many ways it's a versatile unit with a great natural sound.
I thought the idea was to compare the T4 VH with the Digitech unit. I'm not critisizing but the above is hardly an 'apples to apples' comparison. Personally, I prefer the SOUND of the Roland VP-770 but I can see how these units would be way more suitable in a OMB situation.
chas