Yet another member of the big melon club here too. Baseball cap style is okay so long as it fits well, but not snug (definitely 7 3/4). However, I too would much prefer the boonie hat. I'd get one of each if they were offered, but would probably pass if only the baseball cap is available.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)