I'm sure pgf won't drop on even the 50th run. If it's harder than sta and I dare not mention some that did over 400runs and no sta lord knows how much pgf will take. If other drops are active im sure larva is not incompetent as to leave just one off. Just have faith people.
Ps. Also a fun thought , what is serverus means (for Harry potter fans) slithering and slithering is a snake which is green in that series. Green is viridia, also greenill but let's face it.. Greenill is awesome but in ep4. So let's spam viridia rts for two-three days and if nothing drops move on to another id. Honestly just play people, greed is real in this place XD