It turned out pretty well for a trial run. When I did the recording level calibration for left and right, I had both knobs maxed out, and the VU meters still weren't up to 0db when I ran back the calibration tone.
Thinking this might have been some kind of error, I was hesitant to turn the recording calibration level up to max, so I ran it at 3/4 for both left and right. Turns out, with Doby S, you can run the calibration at max. I'm going to do it again tonight after I recalibrate the recording level for both sides.