The term "backed bow" has led to confusion.
Perhaps the term as used for "Backed" Bow of the Month should be
Laminant Bow of the Month. ie., ElBow or LBow, LBOM, whatever
Seriously, though, Mullet, and the rest have a good point about what is a "backed bow".
I must say, though, that if bows from billets are not self bows then I'm out of the self bow business. Because of the less-than-desireable wood I find in Western Montana, I have come to use billets, frequently.