Republic: when you give an Aethersprite the Delta 7b config, its agility changes from 3 to 2. so shield upgrade should go from 8pts for agility 3 to 6pts for agility 2. Also, hull upgrade is affected by the same thing.
Edited by Darth SeridurShield upgrade cost not changing with Delta 7B config
The rules reference specifies that the points cost is determined by the original stat-line of the ship (see page 23):
Q: If a ship equips an upgrade that alters one of its values (such as agility), how does this affect variable cost upgrades?
A: Other upgrades are ignored when calculating variable costs, and the base values of the ship are used.