Oh I guess you are right! I am modded a bit.
I have a 12mm pump (thank you Red!), .205's from Smog, and a few inconsequential things like a home made TIP. Stock paper filter etc. I do always put 1L of Canola oil in per tank and some additive. (Usually Power Kleen stuff for cetane and anti gelling purposes).
I have done the Kerma line pressure mod and think that may be worth at best 2mpg, and a heck of a lot m,ore driving feel. Just using the Quakerstate Multivehicle formula stuff that my local VW mechanics use and like (in the tranny).
My injection timining is adjusted to the upper middle of the graph, don't know if that makes a huge difference though.
Nothing too special. Also takes into account some use of the Evry mod per tank for the ocassional "smoke out off the arse" and rice rocket destruction.
My driving cycle should be killer for mileage (5km to work and home 5km) and lots of running around small town eastern Canada, but it seems to do well for me. I do not have a lot of idle time though where I am as the lights are short and the stop signs are roll through