Just a data point on shelved shares:
Back in early Sept I tried Eligus for a few days during apparently the "worst luck on the Earth". Not understanding I was upset that I only "got" 50% of my work so I switched. In October I figured out the concept and tried mining again. Through October I got every bit of bitcoin that was shelved back, and am running at 99%+ now.
So I will say that Eligus works, and that every shelved share seems to have been paid at the rate at which it was mined.
Thank you Wiz: You run a very. fair. pool.
C