Dave, It comes down to a few considerations.
Budget and Time.
Uncured is cheaper, but takes longer to cycle.
Cured costs a little more, but cycles fast.
I bought my rock for my tank from Paragon. I wanted to hand pick the pieces, and since they were on sale, I could afford to get Cured. ($5.50/lb.) I have about 21 lbs in my 15.
From thier tank to mine was only about 2 hours. So Not much died off.
I have all kinds of fanworms, macro, pods, some small snails, and as a bonus, I got Sr.Mantis, BMF. (he is exiled to his own tank now.)
HTH
B