David, Comprehensive feedback is a good goal. Sometimes, especially with writing assignments, I will first grade the assignment for content and give them feedback on what they are missing or where they have too much information and then I let them edit the document and turn it in again. Then, i look at the document a second time for spelling, grammar and format and then they can edit again and turn in a final document. This provides comprehensive feedback but in parts. It takes less time to grade for one thing at a time and still give great feedback to students. Thanks for your input.