If you've done proper coolant changes along the way and are experiencing no overheat / above normal temps, I'd stick with the traditional. If you notice that your temps are fluctuating abnormally (going higher or lower than normal giving conditions before dropping or increasing) your thermostat could be getting tired and need replacement too.....
Drain (including block and with heater controls on) re-fill with distilled, burp and run to op temps with heater on high, let cool (important) then drain (including block) and refill with 100% coolant (enough for 50% of system capacity) then complete the fill with distilled which should have you end with 50:50 coolant to water. I prefer this method because water will always be trapped somewhere in the system and by adding coolant first you're compensating for that. Don't forget recovery bottle. Removing one of the heater hoses during fill might help evacuate some of the trapped air more easily. Then plenty of burps. Whatever air is left will dissipate over a 100 or so miles of driving.
