Psychohk
Very valid points and thanks for bringing that up.
Send a copy of exactly what you wrote in your post to every company operating to HK advising them that HKATC is monitoring delays in line up, takeoffs and accelerations. Heathrow sent a nasty gram to a major HK carrier last year about slow line ups and it was issued to the pilots by a "notice to crew". It seems to have had the desired impact.