Freehub grease longevity

So for how long semifluid grease will last in freehubs such as Hope and all the other noisy copy paste cartridge bearing hubs? NLGI2 doesn't last longer than 20-30 miles. Last time had no other choice but to experiment with NLGI0 grease in a Chosen 120POE hub but in the last moment dicided it's not worth the risk and had to get a Shimano hub with a typical freehub unit. Shimano with Lucas Engine assembly lube (similar viscosity to Phil Wood Tenacious oil) is still just as quiet as freshly lubed after 90 miles so far.