Crossing a Bronze with a BS hen would give you offspring that were Split to BS and Split to Bronze. Mating back to the father would not be the quickest way to a BS Bronze. If you mated a male and female that were split to bronze and split to blackshoulder, i.e your first gen offspring of your bronze male and female BS, you could end up with a BS Bronze. Here is how it would break down...
M= male gene passed B for Bronze, I for Blue
m=male gene passed S for BS, W for barred wing
F=female gene passed B for Bronze, I for Blue
f=female gene passed S for BS, W for barred wing
M=B m=S F=B f=W offspring =Bronze split BS
M=B m=W F=B f=W offspring =Bronze
M=I m=S F=B f=W offspring=Split Bronze split BS
M=I m=W F=B f=W offspring=Split Bronze
M=B m=S F=B f=S offspring=Bronze BS
M=B m=W F=B f=S offspring=Bronze split BS
M=I m=S F=B f=S offspring=split Bronze BS
M=I m=W F=B f=S offspring=split bronze split BS
M=B m=S F=I f=W offspring=split bronze split BS
M=B m=W F=I f=W offspring=split bronze
M=I m=S F=I f=W offspring=Blue split BS
M=I m=W F=I f=W offspring=Blue
M=B m=S F=I f=S offspring=split bronze BS
M=B m=W F=I f=S offspring=split bronze split BS
M=I m=S F=I f=S offspring=BS
M=I m=W F=I f=S offspring=Blue split BS
so if my calcs are correct there are 16 combos given genes from each side, but if you check there are duplications based on who gives the gene. Here are your ratios.
Blue 1/16 or 6.25%
BS 1/16 6.25%
split Bronze split BS 4 /16 25%
split Bronze 2/16 12.5%
Bronze 1/16 6.25%
Bronze BS 1/16 6.25%
split BS 2/16 12.5%
Bronze split BS 2/16 12.5%
Split bronze BS 2/16 12.5%
Hope this helps and if anyone wants to check it that would be great.
Why is Bronze so much $$$. Well the math behind doing the calcs to get to Bronze BS is why....
Seriously, I think it is a popular color and that is why, demand behind it. When we first saw one we had to get it. And now have 2 bronze males and a variety of patterned (BS, WE, SP) split bronze hens and some Bronze hens. Good luck