itsanfo: I'm pretty sure the Flyer doesn't use a video slot,
video is passed to it by the internal ribbon cable from the Toaster.
BBoAH also makes no mention of the Flyer using the video slot.
I have heard from others that you could use a VT and a PicassoIV
in one A4000T, but obviously not at the same time, as the Toaster
takes over the Amiga (by brute force, I might add
