Post Rage of Halone my Rotation was usually something like this.
Shield lob Primary target (possible provoke on a second target)
Flash one or two times
Fast Blade MT
Savage Blade 2nd target (unless you notice DDs pulling threat off your primary target before you finish your combo)
Rage of Halone on a 3rd target
Continued rotation of Savage Blade and Rage of Halone on all targets
Fast Blade > Riot Blade combos when the 2nd to last monster is about dead until the fight is over to regain MP for the next fight.
I also macroed together GLA's defesnive buff with MRDs to use them simultaneously. I did the same with Feather Foot and Keen Flurry from PUG and LNC. I also macroed Second wind after Convalescence for a nice HP buffer when things got hairy. I don't think you will have the slots to cross class Raging Strikes from ARC or the Crit buff from PUG with the changes to Cure and possible Stoneskin, but they work pretty well macroed in with Fight or Flight when starting a fight. Man, GLA gets a ton of useful cooldowns. I think I had 12 at the end of Phase 3.
As far as using the cooldowns went I would typically use one macro at the start of each trash fight with the Convalescence one being saved if I dipped below 1/2 HP. This allowed for two CDs to be used each fight, which really helped with damage mitigation. Sometimes I would save GLA's defensive buff macro for casters however, since it is currently the only one that reduces magic damage.
In boss fights I would try to stagger out the use of each macro to increase the time that I was taking reduced damage. So far I haven't seen any fights where you absolutely needed defensive cooldowns so the more that you use them the more effective they are going to be.
Edited, Aug 22nd 2013 11:15pm by DamienSScott
FFXI: DamienSlvrblade Race: Elvaan Nation: San d'Oria Server: Sylph 2002-2007, Phoenix 2012
PUP WHM PLD MNK BLU BST SAM WAR BLM 99 BRD THF NIN DNC SMN RDM 50+
FFXIV: Damien Scott Race: Duskwight Elezen GC: Limsa Lominsa Server: Ultros
DoW GLA50 ACN50 PUG50 MAR 50 Rest30+
DoH/DoL All 40+