I was looking at the RNAV (GPS) RWY 6 at 12J. Thinking about my descent profile, I wondered when I could start my descent from my transition altitude if I was told to maintain an altitude until established.
For example, if the controller told me to "maintain 4000 until established," would I start descending after crossing the IAF and tear-dropping into the hold? Would I start descending on the inbound leg? Or, would I start descending after leaving the IAF inbound on the approach?
This question assumes that a hold-in-lieu-of-procedure turn is required. The question, really, is if a controller says "maintain 4000 until established," when can you start descending? Can you descend as soon as you cross the IAF?