KFW,
If you don't do the PRNAV approach but rather a straight in at that time of the morning, there are still the other noise restrictions to contend with.
These effectively mean not below 6,000ft until around 20nm from touchdown and thereafter trying not to descend below the glideslope, ideally continuous descent all the way to touchdown but whatever not less than 2nm of level flight IIRC, minimum 10mile final and not below 3,000ft unless established on the ILS.
None of which is compatible with diving down at high speed and then closing the throttles I suspect
WF.