And the worst old codger of all is Tommy, the miserable git is so tight he wears the wifes clothes because he won't buy his own There are 3 adjuster screws, one between 1 & 2 ( left as you are sitting on the bike) second one between 2 & 3 and the third one between 3 &4. You need to balance 1 & 2 and 3 & 4 first, then balance the pairs with the centre screw. From your video 1 & 2 are fine, adjust the Screw between the 3 & 4 which are out of balance. Then adjust the centre one between 2 & 3 to balance both sets.They do not need to be absolutely perfect just as close as you can get them.When finished adjust the idle speed to about 1200 and then the TPS
their is a calibration adjustement screw on them no need to take them apart
these setups are not that good at giving correct pressure readings but they can be good for making sure they all have the same negative pressure.