Just to update you on this from my trip on 21st September.
Landed at 08:33
Doors opened at 08:40
Arrived security at 08:45
Left security at 08:53 (delayed by people standing in the way of the tray rollers after the scanners to get dressed again rather than using the tables)
Arrived Gate 24 at 08:58
The CSM - who saw I was conneting - proactivly gave me a 'priority' sticker for my boarding pass and I was allowed into the first security lane. In reality as security was so quiet it wouldn't have made any difference which lane I used - in fact it might have been quicker to use one of the others.