Bolshaws do ours too. Just finalising a claim with the loss adjusters who seem to be have been more than fair. As the earlier poster said, if you shop around all roads seem to lead back to the same underwriters. The pricer diferential will be the brokers commission which I think is about 20 odd percent,
Only other thing I would say, make sure the aerobatics is covered. Our polciy has a specifc endorsement to include competetion aeros and air displays.