Couple suggestions would be to also stagger some of your enhancement abilities to increase your haste/SP etc...

example;

I normally do

Ruth Glad Badge of dominanace---- +2029 SP for 20 secs, 2 min CD
Elemental Mastery ----------------------- increase spell damage by 15% and haste by 20 for 15 seconds, 3 minute CD
berzerking (troll racial) ------------------ 20% casting speed for 10 secs, 2 min CD
Lifeblood (herbalism) ------------------- +480 haste for 20 secs, 2 min CD
Vic Glad Badge of dominanace------ +1794 SP for 20 secs, 2 min CD

So if you can macro those to not advance for 10 or 15 seconds you can increase your SP and haste by a boat load for a total of around 50 seconds out of every 2 minutes or so.

My burst goes through the roof when I mash my button and get haste capped + huge spell power buff + elemental mastery going. Easily able to pull down 20K+ DPS on the raid training boss in mostly PVP gear. Of not your gladiator badges have an internal cooldown so both won't activate at same time. Alot of PVP elementals will use two of these badges vice a trinket for movement removal in BGs. There is a 20 second ICD on the gladiator +spell power ability so do one.

Now something to also recall is with more haste your sequences get off on timing. So factor in more lightning bolts or chainlightning as fillers or add another second or three to your reset=combat or target/20 line.