Raid Manager is designed as a replacement for CT_RaidTracker and to manage the bidding process for the points systems used by my guild.
The raid tracking portion of the mod differs significantly from other raid tracking tools. Most other tools rely on a single point of data collection for raid data. This is usually the person running as the master looter.
The problem with this approach is there are frequently loot events where the recipient is out of range of the master looter. WoW does not report the event to the master looter so these other raid tracking tools have no way of knowing it occurred.
Raid Manager is intended to be used by everyone in the raid. It's part of my guild's required mods. With RM every loot recipient, promoted raid member, and the master looter act as data collection points. The result is 100% collection of raid data