Originally Posted by
wordup
It depends on the situation, but here are some behaviours I have seen:
Damage dealt outside of Spirit Shift built up by Maalus will count into Soul Cap when it detonates, however any damage dealt while Spirit Shift is active is not counted until the explosion, meaning that gaming the explosion interaction either way is no real gain; and completely RNG given that the soul cap procs have a small window to appear & count it in, and you lose maalus damage by riding a long spirit shift without detonating it into the ring.