I have been trying to massage my vw with more fuel and now less mileage. I drive as well, to get some place but probably drive less than 100 miles a month but only for reasons of getting there. Regarding my adjustments The boost pin is offset. A cam that can be rotated to adjust the baseline but whos main purpose of giving more fuel under boost. It has a pin follower that drives through a lever down to the main fuel screw. I had first rotated the diaphragm so that the pin pushes out a bit further against the cone shaped cam. I think that ajusts the fueling no matter whether on boost or off. Car ran better but mileage was worse. I turned the diaphragm cam assembly back half way and after a drive to town could really feel less low rpm torque.I returned it to settings that I had initially done on the first post of this thread. But see two other areas of adjustment that I might try. The spring preload on the diaphragm spring, a threaded wheel under the diaphragm and load spring. i could turn it it clockwise and reduce the preload allowing the motor to get fuel faster as the boost comes up. There is also a stop added in, a nylon spacer can be reduced or eliminated to allow the cam to drop down further to a thinner part of the cam allowing enrichment only when the boost is higher Maybe getting acceleration when you need it and less fuel when you want to cruise. I can see by the wear pattern on the cam that there is plenty of room for the diaphragm to move further.any thoughts?Tks.