I have 2 fm hermies 4 week into flowering so far there has been only 6 pollen sacks which i have carefully removed before they opened is it worth keeping them for the last few weeks can someone advise me please
yes, keep picking them off. They will be somewhat seeded because you will always get some pollen escape, but if it's 'handle-able' then keep close watch and pick off the male bits. If it gets overwhelming, pull them. Might want to try and track down the reason they did that, look for light leaks, problematic on-off switches, that kinda stuff.