Hi,

 I played alot of DL and DA. I enjoy tech whoring to get lots of build options, and especially to collect all the passive bonuses. But i'm confused about how this works now that I started playing ToA.

 If you trade to get many techs with passive bonuses, do they all stack? If so, then presumably it's possible to make a much more powerful race in ToA as opposed to DL/DA by trading to get all the "foreign" techs with passive bonuses?

 I suspect some bonuses stack and others don't (some seem more different between races and others more like exact equivalents and therefore non-cumulitive). Sorry, I forget specific names, I can look them up later if that helps. Does anyone know the definitive answer about this?