On Oct 12, 10:42*pm, Pilgrim wrote:

The problem with this method, as others have pointed out, is that this *
wood has been out in the weather for years. The nails and the wood have
become almost one. You apply this much force and the nail only breaks.

I'm not sure about the nails and wood becoming one, but I'll take your
word for it. I'm just saying that I work with reclaimed barn wood
almost every day and this is how we denail it. Slide hammer vise
grips. You don't bend the nail - you yank it straight up and out.
Rarely do I have one break that way. YMMV.

JP