extremity of arrows not visible because of the end of the line

[arno_b]

Need to hide the extremity of the line to show the arrow.

\begin{pspicture}(0,-1.66)(2.44,1.66)
\psline[linewidth=0.04, arrowsize=0.05291666666666667cm 2.0,arrowlength=1.4,arrowinset=0.4]{<-}(0.02,-1.66)(0.02,-0.16)
\psline[linewidth=0.04, arrowsize=0.05291666666666667cm 2.0,arrowlength=1.4,arrowinset=0.4]{<-}(0.02,1.64)(1.52,1.64)
\psline[linewidth=0.04, arrowsize=0.05291666666666667cm 2.0,arrowlength=1.4,arrowinset=0.4]{<-}(2.42,1.04)(2.42,0.44)
\end{pspicture}
}

[arno_b (arno.b)]

same issue for:
- diskin
- double arrows
- inverted rounded/squared brackets