Does air-bubble pinch-off in water reach a universal self-similar state?

For an air bubble detaching from a nozzle in a low-viscosity liquid, the minimum neck radius $h_{\min} \sim \tau^{\alpha}$, with $\tau$ the time to pinch-off. Theory for an axisymmetric cavity predicts $\alpha \to 1/2$ with slowly varying logarithmic corrections (Eggers et al. 2007), while experiments show memory of initial asymmetry as neck vibrations (Keim et al. 2006). Does the collapse approach the universal axisymmetric solution as $\tau \to 0$ for generic small asymmetry, and what sets the final breakup mode?

Imaging and simulations resolving $h_{\min}$ below about $10^{-4}\ \mathrm{cm}$ with controlled initial asymmetry, compared with the asymmetric perturbation theory.