but I have yet to see a top distance runner that lands heel first
Well, durrr, they're all trying to run as fast as they can...Not jog around the park in an attempt to shed a few unwanted pounds, I'd bet money that if you asked a top runner to do 9min miles they'd heel strike occasionally.
Every-one has a gait and rhythm and natural pace that is their own, and that isn't always running forefoot. Forcing people into running a particular way is a short cut to injuries. Forefoot running may work for you, great, genuinely pleased that you've found a way of running injury free. May not work for other people. The important thing is to run in a way that is injury free for you

