The Washington Post January 7, 1994, Friday, Final Edition SECTION: WEEKEND; PAGE N12 LENGTH: 178 words HEADLINE: Superchunk's Pop Floating in Mix SERIES: Occasional BYLINE: Mark Jenkins BODY: THE MEMBERS of Superchunk are fiercely indie-minded; when their label, Matador, signed a distribution deal with a major, they reportedly opted out. Their guitar-oriented college-radio rock isn't all that fierce, though: Given production values designed to disguise rather emphasize its raggedness, the Chapel Hill, N.C., quartet would stand revealed as a pop band. Superchunk's album "On the Mouth" includes plenty of songs that have melody to burn. Despite their jagged guitars and scrawny vocals, such tracks as "Mower," "New Low" and "I Guess I Remembered It Wrong" are quite catchy; with its vestigial backing vocals and surging guitar figure, "Package Thief" is almost anthemic. "Mouth" is frequently appealing, but its offhand sound doesn't seem integral. Perhaps the band should experiment with tidying up its sloppy style, at least a little.