I hope it works- ' cause I'm doing basically the same thing this Sunday. First time trying this. Af100 w/ a Canon FD 35-105mm, and next to that as a B camera the GH2 with a 24mm Nikkor. Will try Barry's, then Lpowell's. The 35-105mm is parfocal and constant iris- so it'll be used for snap zooms. I'll be running 24p though. There will be a Canon Hv40 pulling BTS duties.
re: my setup- everything is on sticks. The GH2 will be locked down in a wide shot. The AF will be on a "loosened fluid head" for that verité look (controlled hand-held).