Sometimes just having a general idea about item\'s stability is simply not good enough. More precise information is needed than feel item stability spell can provide. This need was direct impulse for developing more precise version. In fact, theoretical conjurers first developed exact version, know item stability, but it is just too difficult for many of their adventuring colleagues, thus forcing them to sacrifice some precission to make the spell more accessible. And this spell become the best compromise, it is available at low enough level and it is precise enough to be useful. But anyway, most conjurers look forward to learn know item stability as an ultimate spell in this category. It just takes time to get enough skill, and see item stability is exactly what is needed during this period.

See also: see power level, know item stability