Auto calibration worked very well for me. It only makes sense to complete the set-up configurations first then as a last and final step, run the auto calibration. Distances were spot on and levels on the money too. My sub has built-in 6 band eq and I ran THAT set-up first then the 990 to adjust overall levels
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Outlaw 990-7500, OPPO BDP-83, Main L&R: B&W DM604s3, Rears: B&W DM602s3, Ctr: B&W LCR600s3, Velodyne SPL1200R, Outlaw, Signal, Blue Jeans Cables, Sony 52W4100 LCD, Harmony One