Curry has a way to go until he will be tough

Lambs are bred for eating- and where they are fat and ready at an early age, goats do take a bit of growng on.
I have a female sanaan x BA and she has taken after the BA in height now she is mature, but at 6 months she was not what I would have called big enough for slaughter.
On the other hand, the kids bred from my smaller billy, Bobby, built like a tank, are 8 months, and are big enough to kill.
Are you saying Curry is small in height or is it his weight you are worried about? It could be he has taken after the sanaan, and therefore will not be very tall?
What are you feeding Curry, and in what quantities?
Most of the castrated males we have sent for slaughter have been 7/8 months.