Jon- Those numbers aren't really too bad considering the weight you were pulling and using winter-blended fuel. I agree with you on everyone's high mileage numbers with the PSD though.
I bought a PSD-powered Excursion, trading in my 2000 F350 DRW CC V-10. I never saw 8 mpg pulling the 242LS with that truck, and can't imagine the mileage pulling a TG! Loved the truck and the engine, but couldn't live with the mileage.
I have been lurking on the ford-diesel.com website since this is my first diesel, and just ordered a Super Chips MicroTuner for the X. It comes highly recommended, and sounds like it cures all the crappy shifting problems as well.
WP Performance in KY is selling these as $305 including shipping- they list for about $450. They have a 60hp and 80 hp mode, and from the rave reviews are the best. Talk to Wade- he spent an hour explaining to me what works and what doesn't. They do a helluva lot of testing on EVERYTHING!
Congrats on the truck!