As far as LOWI is concerned - the circling manoeuvre is best concluded on an intercept hdg to the opposite rwy IGS (ILS, really, but they cannot call it that since some rocks at 1,5 NM final penetrate the ILS OAS). When commencing the turn, switch to the nwe ILS frq & set the CDI to the new heading, then arm APCH. Works a treat
Oh yeah - in real life, let the FMC do it for you
Of other interesting apches i can recommend ENMO, EKVG, EGPB, and LZSI - all good fun.
Brgds,
Empty