If the store will replace it, then go to the store. I’m pretty sure they will direct you to work with Miken directly. If thats the case, then swing away until it breaks, then send it back.
It looks like you’re casting your hands a little, and not coiling as much as you did before, which plays into not being explosive. I also think you just need more reps to get back on the groove and improve hand eye coordination.
The 4th swing looked solid...i think you’ll get i back fairly...
Do it. Aftermaths are still a solid choice, but i think whats more important is personal preference. I hate bats that are too light, so i’d make that trade in a heartbeat