David Cartwright wrote:


Assuming that by intercepting at 2,000 feet you're not infringing any other
published rules (e.g. airspace or specific instructions on the approach
plate) I would suggest you look at the published range for the ILS signal.
So long as you're within the published range of the glideslope signal when
doing a 2000' intercept, I can't see you're doing anything wrong -
particularly as you were presumably doing as you'd been told by an
authoritative controller. After all, it's common to fly the first bit of an
approach according to the book and then to take different instructions from
the controller.

The published range of a G/S has little practical meaning to a pilot.
Unlike service volumes for VORs it has no flight plan or route
limitation aspect.

If you can receive the G/S prior to the PFAF, its only advisory in any
case, so you are free to use it as you choose, provided you don't
violate any minimum segment altitude or stepdown fixes or any aspect of
an ATC clearance.