Exactly this. Wotb doesn't need a fix, but understand how it works: actually is used only in elites with one of these affix. Anything else is a totally waste IMO.
I really don't understand why someone would want to use a 2 minute cooldown skill in every easy elite pack. This only makes sense if you are very undergeared or in the wrong MP level.
But maybe the solution is to create a gui option, "Use WotB only in hard elites".
Yeah I'd suggest a toggle. I'm actually thinking the complete opposite here haha. I think you are using selective wotb elite targeting because you're undergeared or running too high MP. Stay with me here:
I think the reasoning behind it is to ensure wotb is available for tough elite packs. The worry is you use it up on an easier elite and then not have it for a tough one. The problem with this thinking is the likelyhood that you run into two tough elites in a row (I don't have hard numbers on how likely this is, but for me, it's frequent). So in those cases, you might not have wotb ready for the 2nd pack (maybe mid fight). So if you frequently encounter "tough" elites, this thinking really doesn't solve the problem because every other elite, wotb *might* not be ready. AND - if you encounter a string of a few easier elites, you never bother to turn on wotb and take longer to kill them (theoretically).
If you're properly geared and running the right MP level, there shouldn't be any tough elites (maybe 1 - 2 instances per run where the perfect storm hits).
Now I'm new to Barb here so take this with a grain of salt if you will, but from watching my char, most elites I encounter, wotb kicks on. Some instances maybe not until midfight, but regardless of the affixes, it doesn't seem to make a huge difference whether I survive or not. In has more to do of where you encounter the elite that makes them tough or not (though there are some affix combos that of course, suck no matter where you are).
Personally, I'd rather churn through all elites as quick as possible. I should think having wotb active for as many elites as possible would yield the best/quickest results UNLESS you're using to help survive the tough elites so you don't die. For those going high MP runs for keys or what not (I can't imagine anyone is using MP5+ for gold/xp farming), a selective use of wotb might be in order.
If you're farming for gold/xp...there really shouldn't be any tough elites for you so having wotb active as much as possible *should* yield the best results. Maybe I'll run a test and see what wins as I can burn through MP4 without issue so an MP2-3 run should be a fair test.
That's my take anyway
So who's making a selection box lol