I am honestly finding it pretty easy to accomplish.
It just smashes jobs.
The Rotovac and portable far and away from being a less than ideal pairing instead work super well.
The Rotovac is quite at home with the 220 PSI pressure. I have excellent heat and the two dual stage vac motors seem to lift water adequately. I pull 12 inches of mercury. I just am fairly conservative with the flow most of the time. I extract carpets at 6.5 on the speed controller and find this ideal for the pressure, flow and lift.
The heat and chemistry and agitation do the work and I just take my time and don't rush it.
On some poly carpets I let wicking help me.
Go over it, let it wick. Spray again and have a second go. That usually exhausts them of soil to the extent they don't wick back.
Use an acid emulsifier every job.
Dry passes I do at 3.8 on the speed controller. It dries as fast as it does if I clean it with my glided AW29 dual jet wand.
Customer feedback is overwhelmingly good.