I have noticed in a few games that the logistic and hit point increase buildings have no effect. they both say they only effect ships built on the same planet so i purposely built them buildings on my homeworld, and built some tiny ships. building was supposed to give +9 to hp and -1 to logistics per ship but gave nothing 
before: 27 hp 2lp
after: 27 hp 2lp
the shrinker on the other hand...works brilliantly. drop one of those surrounded by 5 antimatter gens and 1 elerium shield...so nice. *coughs* anyway...
