I've always found M > H to 10.4k BP > C to be my preferred set up.
Enough haste to not feel like chaos bolt takes 5 years to cast, and a healthy amount of crit on the side.
It also means immolate is almost always ticking at max duration, giving you a slightly larger window in which to refresh. You pretty much can always guarantee a 4 pc proc under meta gem too.
Not really a massive gain, but it's my preferred set up for most fights bar those with heavy shadow burn usage.