Screw chuck recommendation

[Neil Strong]

I don't think the screw chuck is any better at holding a blank than a wood screw held by the standard chuck.

Just saw this video of coring blanks held with just a screw chuck. Keep watching through the 6:20 mark to see how big the blank are before he begins coring them...

https://youtu.be/EHhSaFkudSQ?t=308

The screw on that chuck is bit larger than the standard ones, but had no problem holding that blank.