Steve,
Back in Alaska in 84, I had a 82-83 Bane and a 76 Steam Vac (The predecessor of the Hydra Master
CDS System, Mike Palmer worked for these guys before starting HM)
The only thing I did to the Bane system was at the start of the day, I would fill my fresh water tank with 200 degree water and kept the tank heaters we added plugged in at the job site. . We had a boiler system with a special 150 gal holding tank that while filling the bane, I would isolate the system so no cold incoming water would cool the storage supply. Even with the same chemicals used, same operators, the
CDS unit was faster cleaning, like you already explained, felt drier and dried faster even with the bane using extra dry strokes. As far as the way the carpet looked and felt after both processes, Looked good to me, But, yes the big But, Time is money, We made alot more money and cleaned alot more carpets faster with the Steam Vac unit compared to the Bane..