I just think it is thelling that to org uses Lev 19:26 to justify blood doctrine, but then ignores (even refutes) the command to never shave that is the very next verse.
26 “‘You must eat nothing containing blood.+ “‘You must not look for omens or practice magic.+
27 “‘You must not shave* the hair on the side of your head* or disfigure the edges of your beard.+
http://www.jw.org/en/publications/bible/nwt/books/leviticus/19/