The easiest way I found to change running style was just to forget all the science stuff, and run on tarmac in bare feet (barefoot running!) for progressively longer periods of time. I think I started with about three minutes out, three minutes back and built up from there;
Now, I'm happy with a seven miler over the moors in bare feet although the winter will probably see me in vivobarefoots...
I have found it to be slower but then I was never a gazelle anyway, and the ground can be very slippy off road. The enjoyment more than makes up for it though!
I do have some 'barefoot' shoes, for the winter really, cost me about fifty quid in a sale but even they don't feel the same as real barefoot; especially in this weather, it's great. Nice soft and warm sandy bits, cool wet bits, streams, whatever, it's all good. And due to the way your feet move under you rather than reaching out in front, grip isn't as bad as you'd think, and neither are toe-stubbing incidents.
You've got to ease into it though, it's very easy to get carried away and start your achilles' twanging!
Well, try it, see if it works for you - it might! I can see the theory behind it, a physio told me to try it once. You need a long, straight spot though, and like you said you have to keep turning round now and again.
Even so, might be worth a go. How much backward running do you need to do? Just a fraction of a run now and again? I was thinking maybe a couple of minutes at a time, maybe three or four times at the end of a run so I can work out where to end it, on a nice straight flat bit (in short supply up on the moors!)
I injured myself running some while ago, and was basically off it for months. Then I started running barefoot - literally barefoot - and can now quite easily run off road for a good six or seven miles. Sometimes I take my flip flops if I know I'll be hitting a stony bit.
Admittedly I don't enter fell races now, but then I was never really competitive anyway. I enjoy my running more now than I did before, and it's really quite a liberating feeling.
It maybe not for everyone, but shouldn't neccesarily be mocked just because you don't do it.
I don't mock people for spending a fortune on shoes, as I jog along in my 'Fresh Airs'!!!