>> Using other than IBM tapes (and possibly with them), it seems that cleaning each drive AT LEAST once per week is imperative, rather than waiting till the drive says it needs cleaning. The IBMs do seem to leave lest 'dust' or residue on the heads.<<
You're cleaning LTO drives once a week? What kind of environement are the drives located in? We clean our LTO drives less than once a YEAR! David Ehresman