That sounds reasonable - basically, you are proposing that the dominant force here is the slipstream - overpowering other effects that would tend to produce left yaw.
In other words the directional effect of slipstream mostly depends on where it hits the vertical stabilizer (ignoring other parts). In a nose mount, all of the vertical stabilizer is usually above the thrust line and produces left yaw. With the thrust line sufficiently above the middle of the vertical stabilizer (more-or-less) - the directional effect is reverse ?