There's a new reduction switch in Calibre xRC 2008.2 which makes it easier to do reduction. The new switch is called PEX REDUCE DIGITAL, and it's a combination of our TICER reduction, as well as our PEX REDUCE CC. It turns on automatically when you use the -asic switch, or if you feed xRC a LEF/DEF file. Alternatively, you can turn it on manually by adding the statement in the rule file. It's easy to use because all you have to do is figure out what your acceptable delay error is, and put that number in.