Reply To: What is the difference between LoopTools → Flatten and scaling an axis to 0 (X/Y/Z = 0)?

[Martin Bergwerf]

Hi Deb,

Loop Tools ‘averages out’ the Normals and is okay and fast, when your not using a specific Axis. (You disabled the Z- Axis, while usib=ng Best Fit, that obviously didn’t work as you expected). 

Scaling to 0 gives you more control, because you can control both the Pivot Point and the direction of the resulting Face (using Custom Normals, if needed).