I am getting ready to swap in the 2003 3rz I have, Im thinking about doing the balance shaft delete. Apparently, dozens of people have done it(mostly on other forums) but nobody cared to post up results (that I can find). What I want to know is does it vibrate at idle right now? Did it before (if you ever ran the motor before the delete) and is it "tolerable" "not tolerable" or you "did not notice a difference." Thanks in advance