As for Nourish -- if you're a proponent, why aren't you using enough to make it wothwhile? It heals for about as much "oomph" as a RJ tick, but takes 2.5 seconds to cast.
As to what I'm not using, I can only assume you are referring to the rejuv glyph. That glyph is designed to boost potential nourish HPS when you have 3 or more rejuvs running (ie when there is significant raid damage going out). I'm not going to be casting nourish if there is significant raid damage going out. Simple. As for nourish hitting as hard as a RJ tick. No. My nourish goes for 45-50k, my rejuvs tick for 20-25k.
I find this very questionable. I'm sure others will as well. Stampeding roar is handy, sure, but very situational, while having a guaranteed RG crit every cast is 100% beneficial. An unglyphed RG will crit 60% + your crit % ... so for Sisou, yes, 75%, but for OP, 69%.
Jin'Rohk - AoE sprint for faster group movement into water pools = higher raid dps.
Horridon - Faster group positioning on door transitions.
Council - Clears all sandtrap debuffs
Tortos - AoE movement CD to help avoid avoid turtles/rockfall aoe
Megaera - AoE sprint for people running cinders/ice beam out of the group
Ji'kun - Downdraft
Durumu - Lingering Gaze
Primordius - Sprint for melee/tanks refreshing their buff
Iron Qon - Phase 2 Tornado mechanic
Lei Shen - Moving for Thunderstruck, Static Shock, Overcharged, quadrant transitions, phase transitions, Lightning Whip.