....keeping it below rpms, ...
Lower rpm in normal city and highway driving will be the biggest thing you can do, aside from tire type. A side benefit to being light on the accelerator is then not needing to be slamming on the brakes to stop all the time. My first set lasted about 65k. I like to travel at the maximum speed keeping me out of jail but I'll take my time to get to 80+.
I see no sense in tossing $ out the window just to move a wallowing beast a little quicker to the next stop or so fast into corners to need serious braking.
If you're serious about traveling lower on twisty mtn roads and that sort of thing, invest in the LLAMS electronic interface. It will allow you to choose -20mm, +30mm, +50mm all on-the-fly, any speed. These are applied to whatever height you have selected by the factory switch lever. So for example, in a parking garage, you could drop another -20mm below the factory "low", around town if using much larger tires +20mm at city/medium speeds with tighter turning into parking areas, etc, or add +50 to the "offroad" height for much more clearance if needed.
In medium grade off roading, like rougher than gravel road but not really too crazy, you can choose +30 and not worry about the vehicle constantly trying to lower automatically when it bumps the 30 mph mark. Not that you should be running 50mph in +30 in a rough track, but it's nice for that middle ground.
The -20 is especially nice for getting in garages where you could almost make it with a rack but need some extra. Also adding in the GAP IIDtool here you could even get slammed 100% down about another inch or conversely, add about +25mm on top of the +50 while in standard "off road lift" setting which will put 15" or so under the front engine plate.
With both tools, you could fine tune the base setting using GAP, to say, +10mm for all the time, which would then allow you to actually drop to -10 from stock on the highway. It may sound negligible, but -20mm on very twisty mtn roads or under a heavy load is very stabilizing. It'll wear the hell out of the inner edge of the rear tires, but if used only sparingly, it can be a really nice option when needed.