I'm pretty much indifferent to this rules mod. I'm not familiar with the 'spark' referred to in the title and only picked this up because it was Fate-related and free. As a GM I usually have a well-thought-out setting before I begin, and these rules would appear to sabotage that. On the other hand, this may be better for quickly coming up with a one-shot game.
[3 of 5 Stars!]