Sending trackbacks from your home computer does not make sense anymore as far as I can see. Validators check if the source url exists, if there is a backlink and if the sending IP coincides with the source url domain. But what about sending directly through your splog and so unsuring that the points above are fulfilled? When doing it at a large scale, askimet will presumably catch you. And the usual problem, that many (?) blogs disabled trackback/pingback. Is the method dead? What are your thoughts?