Lets leave this on a good note. You sample sized players of similar rank and file and that lead to good results and that is fine. You are pressed for time in such a way that you can't assess your team mid battle or Pre-encounter, we are busy people in the real world so you rely on the assurance of a high Grim. You had good results with the exclusive +4600 and deem most high Grims to be fine. I think me and some other posters need an important piece of info nudged into your post and that is what Grim score you consider to be high or up to snuff? And instead of stating high Grims are generally better than the rest across the board, high Grims can possibly equate to being more experienced and familiar of the game in how the various systems and encounters within destiny operate. As we all know some of those cards are time sinks and could require a large amount of time to complete. Not a pure unadulterated skill indicator.