We had our Beaver with USAA for a decade. When we bought our new little RV, USAA declined to insure it in Washington State. In place of insuring directly, they have created a referral relationship with Progressive.
Overland was very "professional" when we asked for a quote on the new little RV 18 months ago, but the USAA/Progressive deal was so close, I chose to stay in the USAA "umbrella".
Overland is a valued BAC supporter, but insurance is still business. If things aren't working for you with Overland, try Progressive... especially if you are part of the USAA ex military system.
Bill