1 point: +10% construction speed for 10 turns
2 points: +15% construction speed for 10 turns
3 points: +20% construction speed for 10 turns

Allow it to work on batch construction over 10 turns.

ah interesting

8 points lets you build 2 CS per turn for 10 turns? heh

8 points = 10 turns CS would be a very good deal. I would use that bonus!