Please do tell...
F1xF1 or F1xNH hens?
The barred rock would carry the silver.
If you do an F1 X F1 You will get 1/2 of the males that are homozygous for silver ( purebred for silver) this eliminates crossing in the future to obtain homozygous silver males. Half of the females from the cross will be silver. Put this decreases your chances if getting a homozygous wheaten but allows you to get males with two barring genes.
If you do an F1 x NH hen the BC1F1 will not contain males that are homozygous for silver they will be gold or heterozygous silver. 1/2 the females will be gold and 1/2 silver. This increases your chances of getting a homozygous wheaten. Barred males will only carry one barring gene.
Not worried about columbian.
You can go either way. If the barred male parent was a superior bird then do the F1 x F1 to gain better conformation.
If the NH Hen is superior, then do the F1 x NH hen to gain better conformation.
Either way will work.
Just choose one and go for it. What a person does next depends upon what segregates and the number of birds that are hatched.
Tim