Hello there,
Thank you for the feedback! Grade 5 material requirements for engineering should have reduced by one rank, so it seems like it hasn't occured for Shield Boosters. We've informed the team so we can get that corrected as soon as possible.
If Commanders out there discover any other engineerings recipes that are still showing normal material requirements, please let us know.
We'll be listening to feedback and making tweaks here and there to ensure that this is the best event it can possibly be!
Fast Kill Wake Scanners, grade 5.