The order sounds fine. Best would be to zero > memorize > delete the IK chain (not in set-up room). Maybe even save a new cr2 and then go in the set-up room and delete the bones you dont need. Exit the set-up room and save a new cr2 which will give you a newwer obj in that folder. BTW, as an example. If I'm makeing something like socks I use the closest doner. (pants, shoes, or even better... socks that have been made to conform to the figure) So then I dont have to delete all the fingures and upper body parts. That can take a while and slow Poser down and even crash it. You may even have IK chains for the arms.