I have a Mares MR 22 first stage. (bought 2000) I have a primary and Octo utilizing 2 LP ports. I wanted to swap them so the Primary is utilizing the port closer to my body. I took off the hoses and I noticed the Primry port is a bit larger. So I can not sway them straight away. Is this standard? Do I need to get new hoses if I want to achieve this? I will be going to the shop in the next few weeks to verify. But wanted to try to get ahead of it here.