Cornish X used in breeding?

[CrazyTalk]

We have been raising our own flock for several years. The main focus has been for capons, but the results and observations may assist in some of your questions.

Used this for two years
Parent 1 (P1)
Dark Cornish Cock Delaware Pullet
Family 1 (F1)
Sexlinked results
Whites are cockerals Red/Brown are pullets
Used for capons sold as pullets​

Since the DC has a pea comb the sexlink ability enables positive identity of cockerals. The DC give shape characteristics, and the Del brings in a quicker development. Final carcass weight at processing time (22 weeks) is between 4.5 and 5 pounds.
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Current Program
Dark Cornish Cock Welp Slow White Broiler Pullet
Family 1 (F1)
Cockeral all caponed 4 pullets held for program
Retained one F1 cock all large birds​

Note: this entire batch of capons were lost to Mareks at 17 weeks

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Dark Cornish Cock F1 Pullets
Family 2 (F2)
Cockeral all caponed sold most pullets
See weight note 3 pullets held for program ​

Sampling weight of two random 19 week old live birds was 10.3 #s and 9.8#s, date was 20150302 so after four years we are at the weight we have been trying to obtain. We will continue with this regiment.
Thus far all birds have been reared by the same (P1)-DC cock. The retained F1 cockeral has exceeded the size of (P1).
Currently 20150310 collecting eggs from the above (F1) cock and (F2) pullets. Hopeful, but results won’t be available for 8 months

Did you keep track of feed conversion?