I don´t want to contradict you, Art, as I think you are right. What I believe is that they used one short malice on the top and one on the bottom. But, as yuo´ve used that kind of clip before, and I haven´t, i will follow your advice.
I am not saying definitively that it isn't a malice clip, and don't worry about contradicting me. I am just as apt to be wrong as anyone.
Here are a bit more in regard to my thoughts.
Even a small malice clip has a large connector piece. That piece would stick up above the top of the shell panel, unless it was turned upside down, but even then, I feel we would see more evidence of it.
Beyond that, malice clips are very wide. To me, the attachment pieces on royce's panels seem very narrow. In other photos, you can even see them crushing the strapping. I am not confident it is a zip tie, but it seems to share some characteristics to a zip tie.
I would still agree with you that a malice clip would be a better attachment system and there is no reason I can think of why you couldn't use them, unless they made the overall alignment of the panels mismatch. I can tell you, the way the panel aligns to the vest is NOT the typical way you would see molle style pouches properly attach. They generally align between the straps of the adjoining piece. On Royce's vest they align WITH the staps on the adjoining piece. You might still make the malice clips work, but I am not sure they would align correctly.