Jim Macklin wrote:



Now that GPS or RADAR allow navigation and position fixing
to the IAF/FAF a course reversal is not required.


Not so.

1. Radar vectors, provided they are provided in accordance with 7110.65,
5-9-1, have always (well, since the early 1950s) preempted the procedure
turn. This is one of the exceptions set forth in FAR 91.175(j).

2. GPS is in no way authorized to trump or preempt an otherwise required
course reversal (be it procedure turn, teardrop procedure turn, or
hold-in-lieu-of procedure turn).