Quiet also means that the energy you pull back and put into the arrow is going INTO the arrow and not back into the bow and the shooter, same effect that you mention, Joe...
Bow lasts long, so's the shooter!
It's a painstaking process to not just balance the tiller on limbs, but to have both limbs working in harmony...take time and experience...
I'm sure lots of folks do all that on their bows, but there are some that do NOT and I know that Kirk does...luck of the draw for me after a few major disappointments on "customs" that the "custom" was limited to an ala carte take out menu choice of woods...
I like getting OUT Of my bow ( & into the arrow} what I exert drawing that bow... and I get a lot more return on my Sassy Lady Sasquatch LB then any bow I've ever shot...