u have the buildpower per constructor, and i would recomend overbuild bp and manage default build priority for some usefull buildings, and manually manage the build priority for ur buildings, is a bit micro intensive but for me is the best use and i usually dont go into metal excess at all, only if im reclaiming a lot and i havent built storage. i recomend to know more or less what bp u have, the factory is 10, each caretaker is 10 more, and constuctors are usually 5bp except spiders, gunships and tanks, i think that are 7.5bp, and striders funnelweb is 40 bp and atenna is 20bp