I only have it on one neck, in theory it's fine by me - but Warmoth necks don't wiggle around anyway. I kind of wish you could get a modern neck without one, or at the very least Warmoth should supply a maple dowel of the right size to plug the little black hole, cause it sure is ugly.
P.S. (Why does the spellchecker on the Warmoth site flag the word "Warmoth"?)