To me it make no sense paying shitloads of commishs and fees more just to hit a price that is already available on January through implied prices. Even with less size displayed on Jan, you would get it filled as you are actually hitting the combination of Dec and Dec/Jan with implied prices. Just do Jan First as it is less liquid.
Moreover,you would still have to put margin for 250 CL at first...
Moreover,you would still have to put margin for 250 CL at first...