This is regarding operating within Class B airspace around LAX. I understand their airspace extends 25 miles from the airport from the surface to 10k feet. This would mean any operations in almost every part of the City of LA would require permission from LAX ATC (under Part 107). Has anyone had any success contacting and getting permission from LAX in the past? I've heard in the past that LAX doesn't give permission for any drone flights in their airspace. Not sure if that's still the case. I should add that I'm not planning on going the 333 Exemption route.