What am I doing wrong?

[Cindy]

Hi Damien, I saw the action you wrote for the jewelry question on changing the colors.  I have one for you.  I ask though please, you don't share this as they are for a client that has not viewed them and I can't let it out.  

I am using an AB400 PLM and bouncing light to the background and foreground (glossy white) however, leaving the settings exactly the same in camera and in RAW processing (wrote a preset for it), there is a difference in the grey / white bottom on all of them.  I have used curves and only applied it to the whites, I have tried a gradient just on the bottom, and I have tried a solid color layer on soft light (white).   I need consistency in these, and I am stuck at making this a quicker process.  Here are two examples.  One darker and one light more of what it should be.  

Thoughts please? 

[Damien Symonds]

Hi Cindy, are you asking why the light isn't the same in each shot, despite having the same camera settings?

[Cindy]

I am asking how to keep the base white in all of them.... It's not the photography or the technique so much as a editing nightmare. 

I've done all the above and wondered if there was a quicker, or better way of obtaining it consistently. 

[Damien Symonds]

I'm so sorry, I can't discuss class matters outside of class.

[Cindy]

I figured something out...  Thank you for your time!  I truly appreciate it.  I am not in a class right now, so we are good.   Again, thank you. 

 

[Damien Symonds]

PLEASE don't wait any longer.