So stability and reliability do relate to cost-effectiveness. Every time a shuttle or other vehicle fails catastrophically, the program is delayed and costs in

So stability and reliability do relate to cost-effectiveness. Every time a shuttle or other vehicle fails catastrophically, the program is delayed and costs increase. Similarly, if SpaceX and SNC can't deliver, you end up with no capability. A Falcon Heavy has as much lift as a Delta IV Heavy. I wonder how much the cost would be to modify the CST system for a Falcon Heavy.