With modern digital cams (since 3 chip firewire cams like the VX1000) you don't need a TBC, the singal is stable enough to feed the FLyer just deave it plugged in and in camera mode when you turn on the flyer and run autohue. I used to do this without issue.
The only tim I ran into trouble was when I used a Micronik A4000 Tower desktop conversion with the two video slots. Turns out the bussboard was not compatible with the flyer.
USe the quickpack a4000 and commodore A4000 D with the original busboards.