Nimmer, some still do park northside, 40 minutes as you say, plus another 20 now to get to the NVCR, if it's quiet. My watch went on a 'liaison trip' to the new tower the other day, and from the 1A car park to the base of the new tower took just under 30 minutes...again, it was quiet. Ten minutes to get through security, five waiting for the minibus, and fifteen driving through the airside roads. And then of course that means maybe ten ATCOs and five ATSAs turning up at once all wanting to brief themselves before they go on shift.......but hang on, only four computers to use EBS! D'oh!
To ensure you are ready to work for 0700, you'll have to get to 1A car park at 0620 at the latest, if not earlier.