Hi I just purchased 18 keg shells. 12 Firestone ball lock and 6 corny ball lock. I all ready have 14 pin lock kegs and everything I have is pin lock. My post for the pin lock don't work on either ball lock. Seeing as how I need to buy post for these new kegs I'd rather just get the pin lock posts and not have to worry about 2 separate systems. If you guys know anywhere that sells them let me know, thanks.