Preliminary tLUT value for Cyclone III

What's tLUT, the delay through a LUT? If you do report_timing on a path going through a LUT, look at the cell delay? I wouldn't get caught up in individual delay values like that. The delay is highly dependent on which path is used through the LUT, and is still not a constant from LUT to LUT. (They never were, but older devices used to have timing models that were much simpler than the hardware)