for example on a Theo it takes 124 CS for 50bpt and 209 CS for 80bpt lets say You going to build on 25k acers without rebuilds. to build 25k acers at 50BPT it takes 500 turns so thats 500 plus the 124 turns for building CS for a total of 624 turns to build your land. to build 25k acers at 80 BPT it takes 312 1/2 turns plus the 209 turns to build the CS for a total of 521 1/2 turns. I know Someone is goign to say I couted the CS twice but it does not make much difference, it close enough. So you say over 100 turns with 80bpt than you would with 50bpt.