All other things being roughly equal, I'm happy to use which ever agency/underwriter is giving the most support to the IAC. NW Insurance has been sponsoring the International Aerobatic Club (IAC) for the past few years and they've been a great supporter with insurance for contests and offering great rates to aerobatic competitors. Even when they were 10% higher than competitive, I was happy to stay with them for their support to the organization. But now they're more than $1,000 more. I've shopped the AOPA agency, Falcon, and others and no one could beat Avemco. Never used them before but I'm going with them this time. They seem very responsive and friendly. I've talked to several other aerobatic pilots and they're very happy with them.
Hope I never have to find out how they resolve claims.