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Normal Map Distortion - Straight Grooves

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Dan Powell polycounter lvl 5
Hi all,

Trying to bake down this server box asset, but getting a bit of weird waviness on the grooved parts of the server, within my Normal map. 

Technical Info:
- Baking inside of XNormal
- Using a Cage, and exported via XNormal's object exporter
- Have tried tessellating the low poly mesh for baking but this actually made the distortion worse; will post images on request. 

Low Poly w/ Normal:



Low Poly /w Normal + Wireframe



High Poly Object inside 3DS Max



Any tips on how to debug this is appreciated. I've had a good look through the various threads here, and I'm assuming that the amount of geometry being used here is sufficient, as well as using a cage, and attempting tessellation as a solution. 

Cheers. :)

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