Porcupine:
It's an MT that does idle roughly (even on a full tank). I've replaced the plugs and was about to check the wires. I'll check fuel injector resistance, camshaft/crankshaft position sensors, camshaft sprockets, timing belt and ignitor at your suggestion. The new/used coil I just put in could also be a problem. I've heard that cylinder misfire is a common(?) problem with the 2.5L engine and that even a new NAPA coil is not as good as a new Subaru coil. Also, could the hotter weather be making the misfires worse?
Last year I bought 72 hours on techinfo and thought that I downloaded a full set but I seem to be missing some things so I guess I'll try ebay. It looks like I can get the techinfo PDFs on CD for $24.50 or the full OE printed set for $69.99. The printed manuals would probably be a better investment. The comment about the POS PDFs from techinfo was a frustration with their pricing policies, not the quality of the documentation.
tcspeer:
I'll get a set of noid lights and test the ECU. A new tool!