honestly, I would not know the answer to this.
But here is a QUOTE from JUST STRUTTIN FARM's site...............
<<Here is the history Crele Polish as far as I understand it.
Doug Kamer created this variety and named it Crele Polish which was accepted by the Polish club. Unfortunately, the general consensus is that this variety is not true crele. To create true crele you need to cross a partridge bird with a barred bird, and since partridge does not exist in the Polish breed creating a true crele polish is not possible.
Some people really get their feathers ruffled when this variety is called Crele Polish, and rightfully so. However, this color variety is stunning and worth our attention.
I decided that since the Polish Breed Club referred to this variety as Crele, than I should also refer to it as crele. Unfortunately, there was so much confusion and debate over using the crele name for a genetically non-crele variety that I found myself having to explain myself over and over. Exhausted, I decided to call my project Crele Laced Polish. I hoped changing the name to from Crele to Crele laced would be enough to satisfy the critics.
Unfortunately, the name crele laced still caused some confusion so in 2013 I decided to exclude the word Crele completely from the name. The vareity I am personally working on will be referred to as Orange Barred Laced Polish or OBL for short.>>
And from another site explaining the barred gene:............
http://www.diyseattle.com/chickens/barred-gene-use-in-chickens/I would assume the white would be a good medium, but you may end up with more of a splash than a true crele (creole being the objective)???