Niagara Initial Mesh Orientation with Random Vector Input

Development Asset Creation FX
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I’m putting this up here mostly because I want to know what’s going on under the hood. When I use inital mesh orientation (IMO) in a niagara emitter I’m usually looking to get the meshes to spawn turned in a random direction. However, when I use the Random Vector input in the Rotation attribute of IMO with a scale of 1 (the default), it doesn’t seem to randomize the rotation.

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However, when I set the scale to 0.5 it seems to work fine.

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Looking at the description for Rotation it mentions quaternions, which I’m not very familiar with. Can anyone explain to me why my expectation turns out to be wrong? Should I be using the orientation attribute instead? It seems to work correctly with random vector of scale 1. What is the difference between these 2 properties?

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Answering for posterity: The rotation values here are in odd units. A value of 1 represents one complete rotation around that axis. So setting a value of 1 is the same as setting 0. Setting 0.5 will rotate it 180 degrees.
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Yeah and my suspicion was that because the random vector input returns a unit vector which always has a magnitude of 1, it would always make one complete rotation and therefore would look exactly the same, unless scaled by a non-integer value.