Using two TBCs for video capture? (line + full-frame)

[rocko]

I may have asked this b-4, But is there any possible conflicts using both VCR on-board TBC and AVToolbox at same time?..Would one cancel out the other? Or the more, the better?..(I just posted my A-B comparison/Macrovision mess earlier)

[lordsmurf]

It's not only allowed -- it's suggested!

Remember, the external full-frame TBC "cleans the signal" while the internal line/field TBc "cleans the picture".
They serve two difference functions.