Try as i might the transition and mid range on this motor wont be neerly as smooth as it can be till she has had a few flights every 2 or three flights will need a touch of adjustment till it is all settled in even the little Evolution 46's need to be tweeked for a gal or so. My OS's are sweet out of the box My DA was sweet from day one this one if i lean the burble out of it i loose the transition she wont spool up unless she is 1/2 to 3/4 turn to the ritch my last 58 was the same till the 3rd gal could it be the break in oil shipped with this motor? Mystry to me