I'm running a 6.5 diesel with a Mr Gasket pump, a 30 micron, and a 10 micron oil filter sized filters. It then goes through a tank selector valve.
Do you think a booster pump is worth while?
yes, true diesel filters are much better than 10 micron, and have to be as the MOFT in a common rail pump can't be much with 1.5 cSt diesel fuel, half the engine rpm and a fairly narrow diameter eccentric to drive the pump.