So, is there any advantage to asking for IFR transit? - Understood, IFR separation is greater, so by definition the likelihood of getting IFR clearance is likely to slow down the process of getting a transit, right?
So, if i get an IFR transit, how would it be phrased? - Presumably, not the same as VFR ie "from X to Y not above Z", but it would be by vectors, right? - then "resume own nav" when on the other side?