Timing slow or exceptionally fast workers will tend to result in either unduly long (loose times) and hence uneconomic, or unduly short (tight times) in which case they are unfair to the workers and will probably be the subject of complaints later.
Majira wafanyakazi polepole au kipekee haraka huwa na kusababisha ama mno kwa muda mrefu (mara huru) na hivyo uneconomic, au kuepukana short (mara tight) katika kesi ambayo wao ni haki kwa wafanyakazi na pengine kuwa somo la malalamiko baadaye.