Another aspect that's good for debate is when to start your descent. Do you fly to your Navaid/IAF/VOR at FL3XX and then shuttle-descend your way down to a sensible level to commence your approach? (This is the literal interpretation of the procedure) or do you start your descend as per normal arriving at a normal level at the IAF. I suggest option two since you are expected to fly your filed flight plan - barring any re-clearances you may have received - which most of the time includes a STAR which may have AT or AT OR BELOW altitude restrictions which require you to start descending earlier.
Any thoughts welcome