[QuarianRex]

Note that when upgrading the 50% is a factor of *each* resource not the total. For example, you cannot upgrade a ship costing 5000 min, 10 org, and 2000 rad to one that costs 5000 min, 50 org, and 2000 rad even though the difference in total resource cost (7010 vs. 7050) is well within the 50% barrier.

Trust me I encountered this a lot in my Borg mod. They tend to be somewhat retrofit happy and I was many times stymied by a negligible shift in the oft-neglected organics.