I just made a new mallet head this afternoon from a crotch of maple. I'd have to say it weighs about 3 lbs! This one won't be doin any love tappin.
While we're on the subject of mortising, am I the only one using a t-auger or is it still common? I picked up a nice 1 1/2" one last weekend at a flea market for $10. Also picked up a saw vise and tooth setter.