I want to remove my 6' long hose on the primary and go with something much shorter for the open water rec diving I'm going to be doing in the keys and Miami area. My backup is on a 30". What's the perfect length for the primary? I still plan to donate it to an out of air diver, but I don't need to go single file, I'm just fine holding onto the person and ascending to the surface. I was thinking 36"? I don't want it hanging out in the breeze, but a long hose isn't worth the hassle to me until I get into overhead diving.