While you get Cat Form at 20, there will be many instances in this level bracket where it’s preferable to sit in Bear Form. One reason is that you don’t have an efficient finisher for your combo points in Cat Form at this stage and you don’t even get Shred until 22. Secondly, you are penalized more swapping from Caster to Cat than from Caster to Bear as you start with potentially 0 energy, since Furor won’t be 5/5 till 27.
Possibly the most complicated Addon I have ever used it is also one of the most powerful. You can build custom Visual and Audio warnings for virtually any situation in the Game. I have used it for Buff Stacks Low HP and Ability Cooldowns many times over the years on various Characters. Blizzard added similar Visual Warnings in Cataclysm.Git Repository: https://github.com/Geigerkind/ModifiedPowerAuras