Ok, i agree there might be some annoyance doing this, but it isnt a long and tough thing to swap out the hoses - only on the 1st stage - not taking them off seconds, except thinking about how my set up is at the moment i have a 22-in hose on my backup - if i move the reg over another 4-in (ie to where the left post is compared to a single tank) i am wondering if it will be too short now. The only other hose i have at the moment is a 30-in from the original set of hoses i got with my reg, which i believe is too long. What length hose do you use for the back up?