Well 9 years later after starting this thread, I've been a fairly intermittent runner in that time.
I initially did really well running further and faster than ever before without any injuries for about 5 years after changing to FF style. In that time I got through 3 pairs of NB RC150's which served extremely well for this technique.
About 4 years ago I suffered a twisting injury to my knee which has plagued me ever since and really curtailed my running. For 2 years I gave up altogether and then have run intermittently for the past 2 years and never really getting up to anything more than 10 miles a week. I know have renewed enthusiasm and hoping to get going properly again.
Luckily in that time, the whole 'barefoot running' concept has caught on and now manufacturers are offering lots of suitable footwear so I've just bought a pair of Merrell Trail Gloves to replace my now very aged last pair of RC150's. Calf's are killing me but that's to be expected.
I'd love to hear whether any of the other early pioneers are still going strong ?
I tried Ron hills but they caused me a knee injury until I cut off the styrups and then they were half way up my legs !
After that unhappy episode I switched to Adidas Response tights which I find are plenty long enough and much much more comfortable than Ron Hill tracksters. They are around £30 though compared with £10 for RH's.
Perhaps if you took the batteries and motor out and then trimmed off the excess midsole so it was half the thickness you'd have a useable pair of running shoes. I suspect that they've been designed for posing rather than running.
Imagine trying to get on a transatlantic flight wearing them - You'd end up in Guantanamo Bay.