Imo all you really need to do is watch a video of a team completing the raid to know what to expect and I'm cool. I don't mind breaking down mechanics and stuff but at least be familiar with what tf is going on. If you're playing Destiny you have access to YT and studying before the test is the best way to help not only yourself but the people you're playing with. I haven't attempted King's Fall yet, and probably wont for about a month until I'm sure the mechanics are 'common knowledge', but I'm confident I can join a group of experienced players and not drag them down because I know what to expect and have acquired gear that seems to be essential to success. Whenever I see lfg posts that have high criteria, join and see the host doesn't meet the criteria they've set by a lot I just leave and block communications.