The following illustrates the problem:

http://alan.firebin.net/images/cab_stripes1.jpg

http://alan.firebin.net/images/cab_stripes2.jpg

It was suggested on another mailing list to just sand the ply. I would
rather find a conditioner or like to know if I cut Zinser 3lb clear
shellac down to like 1/2# or 1/4# if that would "solve" the
manufacturing problem when the sheets were made?

These are the inside of drawer holders, and not going to be seen.
Thanks
Alan