This is probably a silly question, but I missed the rack after pocketing ball # 15, now the CB is near midtable, and I want to continue the run. I called the "left corner ball in the left corner pocket", but of course the other corner ball was the one to go in. 
assuming I want to pocket something, what ball should I have called, and any special english/location I should use to get the best odds?

assuming I want to pocket something, what ball should I have called, and any special english/location I should use to get the best odds?