Selective mount buff monitor

[Vrallox]

I'm in need of an addon that will monitor specific members of a raid, that I specify, for any and all mount buffs. If it detects that one of those people being monitored has mounted it should give a raid warning or something of the sort.

The reason for it is because I'm putting together a raft race using the Anglers Fishing Raft. An addon that does what I mentioned above would be invaluable so I don't have to get volunteers to line most of the water course in order to monitor the race.

If anyone knows of an addon that does something along the lines of what I'm asking for I'd appreciate a heads up.