The place where I did my apprenticeship, the boss had a white cane and a pair of Coke-bottle glasses (really thick-lenses) hanging on the wall, which he jokingly called the pink slip inspection kit!
A 45 minute long inspection would be the exception, rather than the rule. Most times the car didn't even go on the hoist. A lot depended on whether it was a regular customer as well.
I'd reckon your blue slip guy was more interested in having a look over the Torana because it was a Torana, which is why it was such a thorough inspection. Half the time a copper will pull you over just because he wants to look at the car rather than something sinister, but that also comes down to whether you pass or fail the attitude test too.
With NSW Pink Slip Inspection guidelines, the car doesnt actually need to go on a hoist for the inspection.
The front end is supposed to be lifted to check front suspension components for excessive wear, but that is all.
My mate was audited by RMS and they put the vehicles on a hoist for a more thorough inspection, finding issues on one that werent observable during the mandatory testing. The car in question looked to be in very good condition, and passed all of the required inspections.
RMS found some rust in the inner sill panel that wouldnt have been able to be seen during a normal routine inspection.
He had his inspection privileges suspended for 3 months from memory.
He appealed the decision, stating that the missed rust would not have been visible during the specified inspection guidelines.
Didnt matter to RMS.
Guess they had to meet some sort of quota to keep up with their KPIs to justify their existence.
Having a mechanical and panel beating operation he had incentive to find rust problems, but this car because of its condition didnt trigger his spidey senses to get some work.
It did make him do more thorough inspections after, meaning that he wasnt making near the money that he should have been.
We sat down and worked out the figures, and for him to make reasonable money, and not have anything slip through that he could get pinged for, he would have had to have charged 4 times the inspection fee
Cheers
Rob