As a slight aside, when you do get 3rd party insurance, it's worth checking if it covers the zillions that the RAF/RN/Army want you to have, in case you bump into something expensive in green or grey at one of their establishments. Mine does at a slight charge to cover up to 10 landings a year at military airfields.
Some PFA'ers only carry minimum hull insurance on the basis that they will provide the labour to repair the damage cos they built the thing in the first place. Some owners don't carry hull cover at all which I think is daft as I was really glad of the insurance on my Aerobat when it was blown over in a gale and wrecked. It paid for my Cub
Not carrying 3rd Party insurance these days is daft unless you are callous enough not to care about the extra grief your family will be put through if the worst happens.