Hopefully Scott will see this

I have several ivorite Randall knives, one is a CC purchased August 2010 and another is a large Gambler just purchased.
The CC isn't as white and has no discernible grain while the Gambler is whiter and appears to have a grain like a micarta
So my question has Randall switch materials or vendors for the ivorite material in that time frame.
I have no complaints, but noticed a difference and am curious
Thanks in advance

Peter