1) TriStrontium Armor and TriStrontium Armor II have the same cost, size, and defense. I would think that if I went to the trouble to research TriStrontium Armor II I would get some benefit for it like with the rest of the techs.

2)I saved the game with 3 class 17 planets. When I loaded my save game I had 3 class 15 planets instead. All three still had 17 squares to build on though. The just showed the wrong number in the colony screen, which I use to build and sort my planets. Edit-I checked and every planet but my capital was dropped at least 1 PQ in description but not in practical use.

3) I think this has been said before but it seriously damages my gameplay. I like to play as the arms dealer. Get a huge mil production bonus and crank out ships for everyone else. I dont care who as long as they pay. But I cant do this. I sell ships to someone and they sit in my territory, sectors away from the owner. Most of the time the owner is at war and sometimes losing. They still leave the ships there. I had one case where 4 people bought my ships and left them there for a year without moving them. When I decided to cheat them back to their home planet they started using them. My guess is the ships were out of my opponents range and instead of auto piloting them back home like a human would they just gave up one them. If they are going to give up on them why buy them. This is frustrating because this is the most gratifying way to play. I love keeping everyone else at war using my ships while I use their money and tech to position myself for the win. I am sad that I can not do this now.