Hey. I was selected for 1810 Cryptologic Warfare from the last IWC board. I don't know what the percentages were for how many were selected vs. not selected. I got a 48 on the OAR and a 3.5 GPA with my major being a BS in Information Technology, so exNavyOffRec was pretty accurate there. I also had 3 letters of recommendation and I would say I wrote a good motivational statement. I was confident in my application but I wouldn't consider myself an outstanding applicant either. If you're above the minimum on OAR and GPA with LoR's and a good statement then I would say your chances of acceptance/selection are good.
I also know that the CW board in Feb 2023 (the one right before mine in Aug 2023) had many CW quotas that the board never filled for FY-23, and the Aug 2023 board is the first board for FY-24 quotas. I don't remember the exact numbers (maybe around 20-24 unfilled spots) but this definitely supports what you've heard that the IWC could use more guys like us.
Best of luck.