I do this all the time since I also play a Paly/Shammy combo.
RSS is the place to go if the Paladin can swing it. In the main room where the zone portal is. There are Pyrilins standing around the edge (along with the cold guys). Stay away from the cold guys. Some of them have this charm/stun/freeze thing they do that means certain death. Stick with the female Pyrilins. Single pulls, all of them. Can start with Malos. Just before it lands, hit a Stun. The Stun is more aggro so the mob comes to the Paladin. Start your melee and hit another stun ASAP. Cast a slow. Cast another Stun. Send the pet. Start with DoTs. Cast another stun. If you are in a bind, you can use Discord without Malos. It lands most of the time alone...but not always.
I set up a Macro hotkey for the shaman that casts 3 DoTs in a row then uses my Ancient Canni spell. So once the mob is under control and slowed, I hit that Macro hotkey and don't have to worry about my Shaman for 30 or so seconds. Once the Macro is done, the Paladin is needing some love. I hit some heals on the Paladin. Soon the mob is getting low on health. Reapply a DoT or two and be ready for him to run. (They run at low health). Keep stunning with the Paladin throughout or big DoT crits will get the shaman aggro. Chase with the Paladin (and the pet) if you have the space (if you fight near the portal they usually run away from the closest mobs) and beat her down. If she turns toward a mob and you are running out of space...root. Beat down.
By the time you have finished about a dozen of these they have started repopping. Rinse and Repeat. These mobs are never camped. No one kills them on Fennin Ro, anyway. They are always available. The only downside is the run to RSS. You can throw in some Panther too along the way!