Traffords are good - I have my travel insurance with them and they do an annual multi-trip policy which includes cover for flying.
My life insurance didn't have a problem with flying but I did have to specify number of hours (total and per year), licences held, how much time I spend doing aeros (<5 hours per year, as passenger!), &c &c. The forms seem to have become more complicated as time has gone on. But they haven't refused yet. Traffords I know can also arrange life insurance.
PM me if you can't find the contact details for Traffords and I'll dig them up.
Tim