Not sure if you guys realize this, but you can accomplish the only adjustments you really would need with another set of the plastic ones if necessary. They screw into the bulkheads 1mm higher in the rear. The pins are the same front to back so the rear blocks are 1mm lower.
You can achieve a lower front pin by using the rear ones in the front.
You can achieve antidive/kickup by running a rear block and a front block.
You can do the same with anti squat and pro squat.
The pins are 8mm from the bottom of the chassis stock front and rear. So far with the car we've never really had to change it other than using antidive every now and then, which you can achieve as I mentioned with the stock blocks. Always end up with flat pins at 8mm.
Possibile front pin 7-8mm along with antidive/kickup possibilities.
Possible rear pin 8-9mm along with antisquat/prosquat possibilities.