Just got through watching a YouTube video entitled " The Limitations of Chucks" by Lyle Jamieson. He said that the tenon for a chuck should be at least 40% of the object diameter (4" tenon for 10" bowl) so it seems that chucks are only feasible for fairly small objects. He also stated that chucks should never be used for hollow forms.
In order of holding power he rated face plate with many screws #1, glue block a close #2 and chucks a very, very distant #3..... said he hasn't used chucks in 20 years due to this.
Thoughts and comments?