Richard Clark wrote:
"One of the language problems with the name Capacity Top Hat, and the
expectation of adding more capacitance is that the short antenna is
already excessively capacitive."

Yes, but that is an incomplete description. The short antenna has an
excess of capacitive REACTANCE. It can be tuned to resonance by
increasing the capacitance between its ends.

Best regards, Richard Harrison, KB5WZI