There are many people who are running around with high Grimmore that I was more skilled than when I first popped in the disc back in September. I don't look at Grimore...I simply ask hey have you ran VoG, Crota, or Skolas before? I think also looking at their best weapons will tell you how far they have progressed vs grimore scores. Oh this person is using such and such weapon for this particular encounter he might know what he is doing.