[lawrie5]

Yes well my way around this is to increase the propulsion technology in terms of armor and tonnage etc (to make it worth getting but also take more space) hence its difference will be recognised less in building more, than it is builing the bigger engines if that makes sense...

And if u think for example what then is to stop someone building a bigger ship with smaller engines ahhh well those smaller engines will be a lot easier to destroy than bigger engines, hence a big ship with cheapy or smaller engines will be a LOT more vulnerable (and still slower)