I usually ride w/ crank bros candies, but recently put on platforms (yes, I know sheldon doesn't call them that) when I was going to be walking for a couple hours on pavement at the far end of a ride. I haven't ridden with platforms for years, but I have to say that I've thoroughly enjoyed them in my commuting over the last couple weeks.
I'm headed to the Blue Ridge parkway at some point in May/June, and was wondering how much of an advantage they'd give for that type of terrain, i.e. long 7% hills. They certainly help on shorter hills, but what about the long ones?
Clearly there are at least two advantages to clips: stiffer-soled shoes, plus using the full pedal stroke. I'm always a bit suspicious of claims for the former, as if the ball of your foot is over the pedal, I don't see how sole stiffness can really help.
And here I'm specifically talking about the Jan-Ullrich-type rider (sitters), as opposed to the Lance-type (out of the saddle).
Please assume "only you can determine what is best for you" etc. has already been said. I'm interested in YOUR experience w/ platforms vs clips on this type of terrain.