I never tried doing the same thing over and over in D:OS 1, nor in 2 until I decided to try using the single charm arrow I had to test what charming a hostile Emmie would result in. If the system in place does guarantee the same result for the same roll, then I've been trying that for nought.
However, I find it hard to understand how a guaranteed 100% to apply effect can even result in a failure. Or how arrow recovery would randomly trigger between 0 and 2 times in the turn and all 3 tries resulting in fumbles.
So I ask, has anyone successfully used a charm arrow?