BCBR height adjustment.. Rear lopsided?!!?!

[sinceday1]

So.
BCBR Installed and all but for some reason, left rear is lower than right even after adjusting the springs to same height.

I brought the spring on the left side to sit almost near the end of the coil but it's still TOO LOW!

Passenger side rear on the other hand seems to have proper height adjustment 'profile' so to speak.

To give you guys an example, per say left and right spring perches are exactly same height, (1inch from bottom rung) driver side is sitting approximately 0.5" lower than the passenger..

What could be the problem?? When I'm adjusting the shock length to give proper 10mm preload on the spring on each side, same thing, I'll have to shorten the driver side much shorter than that of passenger side...