I had a couple battleships in my earlier fleets, those alone apparently don't make a difference. But I'll try with an armada of battle and super-battleships on his main planet with the PD, as soon as I have the required resources, so say... a month?
Even then, the best I have managed is about 16% for a takeover. Either the % is capped at the old 20% or I need some other formula for getting past this barrier. I've yet to be successful with taking a PD defended homeworld with the new code, my fleets arrive and bomb the planets for several turns, but ultimately are destroyed before they can conquer it.
Some more numbers for you the target is a society level 49 planet
100 Cruisers 7.4%
200 Cruisers 10.2%
300 Cruisers 11.8%
400 Cruisers 12.9%
500 Cruisers 13.8%
50 Battleships 6.0%
100 Battleships 8.8%
150 Battleships 10.4%
as an aside 25 cruisers targeting a society 26 planet have an 11.8 chance of success.
