The $\tau_{2}/\tau_{1}$ (left) and $\Delta R$ (right) observables are shown for a variety of different axis selection algorithms. Both plots are obtained using a PYTHIA6 Perugia 2011 simulation of pp collisions at $\sqrt{s}=7$ TeV, in the particle level charged jet transverse momentum interval of $40 \leq p_{\rm T,\rm jet}^{\rm{part},\rm{ch}} \leq 60$ GeV/$c$.