Hanti, be careful... more then 18 shield rows can cause sudden crashes or malfunctions to the game.
Another trick: the nuclear weapon factor starts at 80 attack points. 79 is the highest normal attack point you can reach without Manhattan wonder... So i planned to create a neutronic bomb for a Gundam scen i was working at ( in this cartoon series, there was a "South Pole threatry" that banished chemical, biological and nuclear weapons forever...) . The idea worked, but Sunrise sued to not create this scen because of copyrights, so I got fried the whole scen. But for another sci-fi might be interesting.
Hy from Prom