Why not use pro8mm?
http://www.pro8mm.com/
This was my setup running the project right into the sensor. With magic lantern you can adjust the fps. But like David said, getting them to start at the same time is impossible so I would get flicker.

http://www.pro8mm.com/
This was my setup running the project right into the sensor. With magic lantern you can adjust the fps. But like David said, getting them to start at the same time is impossible so I would get flicker.
