The Spoiled Surprise: ``Competitive'' results

	ASM Fresnel Hann	Yi-Wen Hann	JOS Gauss
No AM, no phase	best for larger $\alpha$	excellent (but not for v. small $\alpha$)	near-perfect
phase shift	not robust without good estimate	excellent (but not for v. small $\alpha$)	near-perfect (?theory)
AM	not robust	excellent (but not for v. small $\alpha$) (theory?)	near-perfect