NSWGR 4 Wheeler Underframes : Safety Hoops

At the last Waratah Workshop day I was diligently working away on an aspect of my K Wagon. I was looking at the underframe detail on the wagons of some of my fellow modellers and I thought a photo would be a good supplement to the instructions. Later that evening at home I tried to finalise some of the modelling work and looking at the photo and reading the instructions I thought something was amiss. I started thumbing through my past issues of 7th Heaven looking for 4 wheelers. Actually first I went to the web and Google and couldn't turn up a photo of sufficient detail on the underframes of a 4 wheeler. The photo I came away with shows the Safety Hoops across the wheel axles. The photos from 7th Heaven distnctly show the Safety Hoops across the Return Spring - see the attached image taken from 7th Heaven.

I'll spare my fellow modeller from embarrassment, however he said to me, that he had also photographed the underframe of someone else's model so he could have confidence in getting the layout right. So I think there may two K Wagons out there with a different interpretation of Safety Hoops.

I presume the Safety Hoops in the image - are correct? Can someone confirm?