I don't have metal pins, I use wood pins, the same ones used in the building. If I can, I tap them out from the underside. The drier the better in this case. On occasion I need to use the peg puller, the slide hammer with vice grips attached, for extraction. I find it near impossible to pull drawn bored pegs after they are set, simply by hand. I will use straps and such on some mock ups, just to get things into place, the peg does the final placement and if that doesn't do it nice and easy usually something needs attention.

Tim