Ok, I think these Q&As complement nicely the OP, giving a view of difference available stop-loss methods and their implication in case of an abrupt swing of market price.

Under more or less extreme cases, the limit stop-loss paradoxically may perform against the better option, when the price dips quickly, the limit stop-loss value is not met by any buyer, and eventually this may lead to selling when the price is rising again (option “B”). More sophisticated methods probably can read this and act accordingly (i.e. abort the sell if limit stop-loss is skipped, but met on a recovering trend).
The market-stop-loss option is what I thought would happen, rendering as a result option “A” with results such as those you mention (an additional 2,56% loss from the intended target sell value).