My understanding is that you want to use as little of the potential lift of the unit as possible to maximize CFM. If I were a porty only guy I would be using 10” or 12” wands with 2” tubes and keep the 2” hose runs as short as possible. With good methodology and a good unit like the recoil you should have great dry times. If your using the maximum lift on every job, there is something that needs to be improved.