First of all, since you are in a BC and not a bp'wing (right?) try tucking the excess long hose in the front under the cumberbund of your BC.
Second if the hose is getting cuaght on the first stage when deploying it, maybe you are not deploying it correctly. Don't try to 'unwarp' the long hose from around your neck, just lower your head down and slide the long hose over the top of your head and hand it to the OOA diver.
Have you dived with any other more expereinced divers with a smiliar set up? DOn't try to learn everything off the internet, find someone in your area with a long hose and go dive and practise.
Second if the hose is getting cuaght on the first stage when deploying it, maybe you are not deploying it correctly. Don't try to 'unwarp' the long hose from around your neck, just lower your head down and slide the long hose over the top of your head and hand it to the OOA diver.
Have you dived with any other more expereinced divers with a smiliar set up? DOn't try to learn everything off the internet, find someone in your area with a long hose and go dive and practise.