Write and read track width optimization - data vs. model

One important requirement of any MR head off-track capability (OTC) model [1,2] is to predict OTC as a funclion of mite width (W) and read width (R). For practical purposes it is of more interest to predict the minimum of OTC and OTC, (where OTC, is OTC measured with the adjacent hscks at infinity), as OTOOTC, implies a value of OTC that is higher when adjacent tracks ate prfsent, which is not always the case in a drive. Thus, we detine X=min(OTC,OTC,) and we examine., by comparison with experimental data, how well the optimum values of nominal Wand R for maximum X are being predicted by modeling results