Sommers Responding to Students writing

Sommers writes, "The problem we face as teachers is to develop comments which will provide an inherent reason for students to revise; it is a sense of revision as discovery,as a repeated process of beginning again, as starting out new, that our students have not learned" (Sommers, 5). According to Sommers it takes between 20-4- minutes to grade an assignment and the students are not fully understanding the comments and comments are not being written as constructively as possible. How can this be accomplished?
It sounds almost as though comments on papers are not a good method. Perhaps one on one conferences between teachers and students would be a better way of accomplishing revisions. This way students can explain to the teacher in their own words what they wanted to convey, then the teacher might not tell them to make a change they originally would have. Or a teacher could take the student's explanation and be able to explain to the student why a change might be good there. This method would provide more feedback, better communication, and would hopefully help the student push their agenda rather than the teacher's. It may also help with mechanical problems because the teacher could take the time to explain why something is wrong grammatically. The down side to this method is the time requirements it would take, however it benefits both the teacher and student by giving each other a greater amount and better quality feedback.