Event isotropy $\mathcal{I}^\text{sph}$, an event shape observable that measures the distance of a final state from spherically symmetric state, is designed for new physics signals are far QCD-like. Using technique producing wide variety can range near-spherical to jetty, we compare other observables. We show thrust $T$ and $C$ parameter (and $\lambda_\text{max}$, largest eigenvalue sphericity ...