CL Very Prive- sizing question

Pony hair VP's do not stretch much at all, unlike leather/suede. In my experience, sizing-wise the pony hair VP's (leopard, zebra, etc.) actually ran a bit like the patent VP's -- a tiny bit narrower than their leather/suede counterparts (probably b/c the foot doesn't have much extra room to stretch).
 
In case anyone is interested, I saw this shoe at Footcandy Shoes in St. Helena today and they have one pair left in a size 39 with the pony covered heel. It is still listed for full price.
 
I'm looking at maybe getting these from Bluefly

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Can anyone tell me how the sizing is? I'm a 39 in Choo and Gucci, should I go up a half size in these? Do I also take it that Bluefly have got the heel height wrong on the description because it says 3 1/2 inch but it looks lower

Thanks :smile: