I just exfil'd with 4 legendary tools and 4flawless crystals. Only one completion per "team". I first scorchered into T3 completed all 3 POl's solo and collected rewards then just hung out and when another duo came up I told them l'd help with all three and give them each the rewards from 2 POl's because I didn't have the rucksack space. So we all left with 4 tools and 4 crystals. That's my new method going forward.
Hopefully they don't change it anytime soon
But for now I’m going to horde them and fill my stash primarily with them with the expectation of it changing next week lol