109 pilots sat on their fuel tank. It might not hve been more comfortable
No, seriously, the mechanical linkage of valves pressure directly in the cockpit might hve been more the problem when it comes to catastrophic tank failure (e.g tank burning) as the low pressure point was.... the cockpit zone (outside air pressure being raised by dyn press).
Of course this is a strong point with egg packed engines and direct injection. They might hve worked on the eng ctrling feature for late Merlins.