 $$\Delta({\ensuremath {\mathscr{Q}}}_{n}^{\nu_0},{\ensuremath {\mathscr{W}}}_n^{\nu_0}) = \begin{cases}                                               O\big(n^{\frac{0}{0} - \frac{0}{0}\beta}\big)& \text{if } \frac{0}{0} < \beta < \frac{00}{00}\\                                               O\big(n^{-\frac{0}{0}+\frac{\beta}{00}} (\ln n)^{\frac{0}{0}}\big) &\text{if } 