Simple Accel Cal

Hello guys.

About new Simple Accel cal.

I have always done 3-axis Calibrate Accel FC on the table. And next amendments Calibrate Level when FC install on model plane.

But now i see Simple Accel Cal. This is only one calibration for install FC on model, when model is vehicles?

For better - use 3axis Calibrate Accel on table + Calibrate level on plane - or - use only Simple Accel cal on model?