I am changing all my existing 2-cycle equipment over to Amsoil 80:1 mix. I have a new Echo PB-650 backpack blower that has not been run. Should it be broken in on regular 2 - cycle oil mix (50:1) before changing to Amsoil or is it OK to break in with Amsoil? I have seen some discussion on this but am still not sure which is best. Thanks for any opinions.