Coilover install problem

sig11

Has anyone experienced an issue installing coilovers where when setting the rear height one side's adjustment is greatly different from the other? I'm reinstalling my BC ERs after having a blown front left shock replaced (user error) and I was able to get the car level at ~26.5" ground to top of arch but:

the RR spring adjuster is at essentially the minimum height setting and
the LR spring ajduster is at essentially the maximum height setting. Springs are equal in length and preload.

Setup procedure was:

1. Shocks off
2. Set adjuster to mid height
3. Lower car so that it sits on the springs to check height.
4. Raise car and adjust height (repeat as needed)
5. Attach shock at top
6. Preload spring ~1/4" with floor jack
7. Adjust shock length to connect bottom.
8. Profit

Rear perches have the gold colored base clocked to sit properly in the bottom of the midlink, the spring, then the adjuster held on top by the stock tabs.

Any suggestions? BC doesn't open for another 30 minutes but I intend to give them a call for help.