Use normal QC's so you can also use the gun to pressure wash showers, your van, the mess you made in the drive way and the poppy seeds stuck in your teeth from your breakfast bagel.
I like the dema valve from the Interlink/ HydraForce model the best.
The hoses, QCs, guns and jugs shouldn't really matter.
Back in the day when everybody had carpet in their living rooms and everybody had herculon furniture, we'd use the HF with no lance to pre spray furniture....so quick
Nowadays almost everything gets pre scrubbed with a bucket and mitt....