I believe it would be a small effort to put the finishing time of Darkspire at the end after the boss kill. The Timer is running anyhow for the leaderboard. When it says "Instance Complete..." it could say "Instance Complete in XX:YY". It is nice to have a leaderboard but for guildgroups starting with DS and trying to get better at it it would be lovely to have something like that. Because bad groups do not appear in the last hours leaderboard when it is spammed by <20min runs 