One advantage of a center aisle is that if you have roof A/C units, which are almost always on the center line of the roof, I have 3 in my Eagle, the air seems to flow better between rooms.But the side aisle affords more privacy in the bedroom and may be better if someone is an early riser, whilst the other mate is not. But then again, a door will do about the same thing...right?And yes, if you have a center aisle, you will have a split bath, but is that all that bad? With a split bath, one person could be using the commode and another one taking a shower at the same time. Or I suppose you could put facing commodes both on one side of the bus so there is no waiting. The other disadvantage of having a split bath, you may want to add two fart fans. One for the commode area and one for the shower to suck out the moisture. But fans are cheap anyway.Another disadvantage of a center aisle, as noted above, is that if the bathroom is occupied, no one can access the bedroom, which may or may not be a deal breaker. And correct, you can put a door on each end so you end up with one BIG bathroom if you like.And yes, good point about the center aisle allowing more insulative air space between the outside walls and the living area. It may not make a big difference, but everything helps.
I haven't seen a side isle on a new Prevost conversion in over 20 years,you could probably get one on special order,they do a lot of curves on newer buses to keep from having so many rattling doors though,I have a big dislike for pocket doors, I have four of the suckers made of solid wood and the slides and the $35.00 latch give me fits the top and bottom
I never liked pocket doors either. I had an Aunt and Uncle that had them in their house and they never closed tight and were a hassle to open. A friend of mine with a Prevost had a bathroom pocket door close and not open and that created some concerns for the person on the inside. I am sure others have heard similar stories about those air-operated doors, which are just one more thing to go wrong like in this case.
The success of a pocket door relies upon two factors. 1. The material the framing is constructed from. If the pocket is made from metal, it will not function properly over time. That's not to say a higher guage metal wouldn't work, but in my experience, they are usually pretty flimsy. Wood ones are much better.2. Installation. Many pocket doors are not installed properly or adjusted accordingly. Pocket doors are great idea that are rarely well executed.