"On on the subject of bent trailing arms, the engineer who needs to sign off my adjustable suspension isn't happy that one adjuster is wound out more than the other (at the rear), even though that's how I have set it up so the car is level. (Prior to installing the kit, it leaned to the left a little). ..."

Could you use the factory data to show the "variability" of the standard specs and hence the need for different adjustments to overcome the factory "tolerances"???

If you've got too much toe in, you can use the normal shim method to get the toe within the range of the adjuster...

Cheers, Ian