A lot of good suggestions already.

For the most part, I avoid any RDs that use a ride or open hi-hat. Those are usually in the B sections of a RealDrum - so don't use those. Just use the A section (you can freeze that if you want the B section for other instruments.
I find MANY of the crash cymbals in RDs to be far too loud. Those I tame with volume envelopes or remove and replace with a cymbal sample of my choosing (and a kick since they usually happen together).

A multi-band compressor can help accentuate the snare and kick and lessen the high-end sounds.
Studio One includes a preset called "S1 Drumgroup" that I use (almost always). It includes a multi-band compressor and EQ set for stereo drums.
Using a notch EQ to reduce a small band of high EQ can help, too.

I have done the add-a-snare-and-kick trick in the past. Manually placing the hit in my DAW. It is tedious, but only takes about 20 minutes for a song - (I tried to figure out if Studio One includes a feature like Bud uses in Logic, but I could never figure it out). I haven't done that in a long time though. The more recent RDs have snappier snares.

150+ Songs produced using BIAB RealTracks
And 50 more...
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