Brion,
I was using marlingspike hitches, adding two turns to the loop which is dropped over the end of the spike at the last. Waxed dental floss (ribbon kind) is very slick and taking the extra turns was a slow and deliberate process to do successfully; perhaps with more practice...?
The only reference to Pilingspike hitch I could find (other than folks seeking a Spanish translation) is in the January 1999 archive of Fairleads "Pieces of String Too Short to Save", and that is:
A knot that hasn't made it to mainstream print yet is what I've dubbed the Pilingspike Hitch. It is yet another gem from the hands of John Smith, and leaps in to aid the ailing Marlingspike Hitch, another old knot that has been marginalized by new materials. I'll see if we can figure out how to post some drawings of it on the site.
Is the John Smith to whom you refer the 17th century sea captian?
It has been more than a year since Fairleads has had a new article. Maybe this can be it.