Greets gents.

earilier i was asking for yours help with some of the paramaters of the game.  thankyou all for helpin me out, it's here if u wanna see it https://forums.galciv2.com/305763

anyoo, this is a tactic i do to keep the neighbors from becoming unruly.

i have a cluster of planets that got hit with the precurser thingy which sets all the planets in that solar system to like 14 or something along those lines.  First off, i make sure i have the means of gettin to the enemy home system(militarty bases don't fail me now)  after that i create a fleet of 3 defenders and 2 or 3 troop ships.  set off, makin sure i avoid the roving patrols of baddies.  when i get to target system, i look for 2nd or 3rd best quality system and invade it.  after i got that world, i reset all the stuff in that world to factories(and factory enhancements) and stock markets.  now here's where the fun begins.  now I begin building trrop transports(5000 troops) and take over another world using mass drivers tactics.  that will 9 times out of 10 drop the planet quality down.  after i conquered, i use other troop ships, and take the people off of my newley conquered planet and put em on my first conquered planet.  then i build a cargo hull with a 500 cargo modual.  get in the forien relations tab, and trade the planet BACK to my enemy.  after which i load up 1 coloniest, and proceed to use mass drivers and take over the world again   

This isn't a quik process, but i can take a system of 5 planets with a qual of 14 and bring em down to like 2 or 3 quality.  i do this cause when my enemy gets em back, they won't help him so much. 

hope u like.