Hey Sharp -
Thanks for posting that link. I've been thinking about doing this for a long time but have been kinda paranoid about getting the wrong injectors. I contacted the seller and he sold me a set of four, cleaned, tested and with new o-rings for a very reasonable price. The most time consuming part of the swap was bending the fuel rail tabs right to accommodate the shorter injectors, but I was still done in less than an hour.
To me the idle seems the same but it is peppier off the line and definitely has more "oomph" on the freeway - sort of like the difference between having the AC on or off. The best part, though, is the 1.75 extra mpg I've gotten through the first two tanks. That's a 12% increase, even with towing my little trailer that I use for work!