First: Major thanks to everyone who contributed to anything that goes into Fates hacking. Now then, I have DeathChaos's playable units on my file via extdata merging (since way back), without CFW. I have had most of the actual FE Fates DLC since launch, and did not have to mess with any of it while getting those units. Also way back, I attempted to get these Omegablu characters as well, but after merging the extdata, my save file wouldn't load. No big deal; I had backups of the orig+DeathChaos extdata. I reinserted those, and this time tried to use the combined extdata that EmblemCrossing provided on DeathChaos's thread. Same issue. However, I recently-ish got CFW, and am wondering if anyone has attempted/succeeded at installing this (Omegablu's) via CFW already having DeathChaos's via extdata merging? If not, any forsee-able problems, perhaps? I didn't go ahead and try because I knew how to undo any potential damage (via reloading backups) that I could've done by manually merging extdata, but I do not know how or if it's even possible to undo potential damage by installing the DLC via CFW, should my save crash upon loading like before. To help anyone answer my question: Currently my save works perfectly with original Fates DLC as well as DeathChaos's characters received by extdata.