punkbass2000
Des An artiste
In response to the edit, Markus, it's not that the pre-build is bad-form (in most games it is considered a reasonable and even essential strategy), it's that you claim you rush-bought an improvement and then changed to a SW. AFAIK, you can't use any sort of 'quick shield' (forest chops, disbands, pop-rushes, etc.) in a SW (or GW), nor can you try to cheat the system by doing them into acceptable builds and then switching to a restricted build. In fact, IIRC, you can't even switch at all until you build something that can use those shields and clear them from your shield box. This differs, BTW, from switching away from a military unit when under mobilization, where you simply lose any extra shields you have 'illicitly' gained.