Ok the differences between FBN and Ovale are interesting to me. In the past I've used FBN and now I'm trying Ovale. I also did some raiding with both addons on at the same time. The one thing that caught my eye was the following:
FBN does indeed pool energy and does it more efficient than the Ovale script. I discovered this while raiding with both FBN and Ovale active. What often happens with Ovale is that you pool energy, Tigers Fury is ready and you're at around 50 energy which is not optimal to use Tigers Fury. Therefor you first get rid of some energy and afterwards use the TF. The end result in long fights is simply less use of TF.
Now what I tried to do with the script is to work around this. Unfortunately I could not find a command to say something like; unless Spell(TIGER)in (less 3) so I had to be creative.
I replaced
if Mana(more 69) Spell(SHRED priority=2)
with
unless BuffGain(TIGER 28) Spell(SHRED priority=2)
{if BuffGain(TIGER 28)
if Mana(more 69) Spell(SHRED priority=2)}
What it does is it checks if Tigers Fury has been used in the past 28 seconds (TF has a cooldown of 30sec), if it was used then it should continue to pool energy as normally, if it wasn't used in the past 28sec (which means there are 2sec left till it's up) you are allowed to use the energy a bit earlier so you can make use of Tigers Fury as soon as it's ready.
I hope this makes sense and maybe it can be written in a more easier way because I missed some kind of command.