As far as Ultimate Modules were concerned, the one that Ves designed for the Yellow Jacket possessed the least amount of sophistication.
This was partially because of the limited time that Ves could allocate on this priority. He did not have the time to design a more elaborate and sophisticated Ultimate Module that could produce a more sustainable effect.
Another reason why Ves settled with such a self-destructive Ultimate Module was because it was a desperate attempt to quickly raise the threat level of the Carmine mechs.