Educators' experiments in cassette critiquing of college student papers have met with considerable success. After discussing the potential advantages, the Department of English at the U.S. Air Force Academy, Colorado, conducted a pilot program of cassette critiquing during the 1971 Fall Semester in the English 430, Technical Writing, course. Two course-wide surveys were made during the program to determine 376 students' reactions to cassette critiques as compared with conventional critiquing (written comments, handbook cryptographics in the margins, student-instructor conferences, and in-class discussions) methods.