Yep. Let's say that with your driver your desired corner weights are: 250 250
350 350
You obtain that and then remove the 160# driver from the equation, and unladen the corner weights are:
220 200
300 320
Now your cross weight looks out of spec (48%), your splits across the front is out of whack (20# diff) but when you put that driver right back in the car you're back at your 50% cross and 0# split across the front. Your set up could be duplicated without the need for the driver by going for the 220 - 200, 300 - 320 set up.
Same thing with alignment---if you run -2.5 camber with driver that might be -2.25 w/o, toe might change from .125" out total to .09375".
Fair enough. More than one way to skin a cat.I would not even bother to check them, for any reason.