Originally Posted by Faderjockey
Do you realize how many stages a console goes through?.
True, but not all summing stages are created equal. From a dynamic range and S/N ratio perspective, doing attenuation then makeup gain is far from ideal. But as a practical matter for something like rock drums it probably won't matter.
One more thing regarding effects like reverb. If using multiple ones would you stem them out together as a separate summed reverb stem? Or sum internally and keep the drum verb with the drums, guitar verb with guitar, etc.