So Cubase has, in addition to the fader, a 'gain knob' thing above it. This is the odd looking knob with the numeric display in it:
I'm talking about the thing to the right of the phase reverse button (Ø).
That knob adjusts the level of the waveform that's fed into that particular channel - it is, for all intents and purposes, identical to Cubase's ability to lower/raise gain by clicking/dragging on the center square of a region, or right click -> process -> gain on a region.
When I have my tracks edited and tuned and ready to mix, I start by moving every fader down to -9. Highlight all, link channels, drag down, unlink channels. From there, I use the gain knob to adjust levels before applying any compression. This allows me to get my levels adjusted but also leave me maximum adjustability on the fader itself, as well as really helps keeping overall level in a good place (my mixes, pre-mastering, usually hit -4 to -6 db).