vATCO - I was simply quoting TopBunk's post, but on re-reading it he does say "words to the effect .... do not climb above initial". Having looked at the LGW sids they all clearly state "Do not climb above sid levels until instructed" and "..strict compliance with climb profile..." as you stated.
I do believe that (for once on this site
) we are in danger of reaching an agreement : follow the chart!
