On Tuesday, December 22, 2020 at 6:10:36 PM UTC-7, R wrote:
Other than Costello, what company provides you with Glider insurance.

An additional comment to my original response (AOPA - same underwriter, same coverage, same price): Since AOPA and Costello are for the most part identical, I wouldn't change from one to the other unless the agent/broker somehow negotiates a reason to change.

Raul Boerner