We're doing a single stage scoot in a week or two, why? And ya, I have done multi stage scooter diving in deeper cave, and we didn't touch backgas and placed safeties. If I have the right equipment, the right team, and the right conditions, I don't mind diving deep on OC. This dive will take is somewhere we've swam before, know the gas it takes to get out, and allows us some good training time.
A high flow, shallow cave is simply different than a 200+ no flowing cave. You can't dillydally in there, deco racks up too fast and breathing gas goes too quickly. The stuff I'm staying is designed to minimize the dillydally factor. All of this so called 'DIR' stuff is designed to reduce things that slow you down and increase efficiency.
To answer your question, if you are swimming and return to your stage bottles with an oog buddy, OBVIOUSLY you have to get them on a stage. Its either that or....drown? Swimming with stages is no the same as scooting with stages.