[MOSAIC] Best IRI

[mkendall7 at nc.rr.com]

What INFORMAL READING INVENTORY (IRI) do you prefer? I have used the Stieglitz, Burns & Roe, Silvarolli and a few from reading textbooks. We use the DRA for grades 1 and 2 at present but we switch to the IRI in grades 3 and 4, largely because of time constraints. 

I have seen some reviews of Burns and Roe in which people feel some of the passages are very dated. The Silvarolli (in my opinion) is the least accurate. I like the Stieglitz for a number of reasons. Any thoughts about any of these or other IRIs? And what about the QRI? How does it compare?

Thanks for your advice! :)