Before revision:  Reversible bond formation plays a major role throughout the assembly process by helping avoid incorrect assembly, and while there is a preference for compact structures during the early phase of cluster growth, as shells near completion structures with a variety of forms are encountered .
After revision:  Reversible bond formation plays a major role throughout the assembly process by helping avoid incorrect assembly, although the details differ due to particle shape and URLanization. The strong preference for maximal bonding exhibited by the triangular particle clusters is also apparent for trapezoidal particles, but this is now confined to early growth, and is less pronounced as shells approach completion along a variety of forms are encountered .