I see a lot of discussion about operations to 1000' etc., such as pattern box, jets, etc. Those operations would seem to be in direct violation of paragraph 3c of 91-57, which is very specific with respect to maximum altitude. If someone can point to a section of law or federal policy where this has been waived, I'm interested to read it.

http://www.faa.gov/documentLibrary/m...ular/91-57.pdf