Anim BP Custom blend, Delayed Freeze time/frame mismatch

Hi , here is a screenshot, plus I realize my description sounds a bit (or more) confusing, so there is also a little scheme of what I’m trying to do with that custom blend.

One could use transition animation which ends with the exact same pose that the next state starts in, but in practice this is quite hard to maintain in the long run, there always seems to be some bones off by a degree, either due to compression or updates to animations which didn’t make to the other animation in perfect condition, so a few frame blend seems like a good solution (the transition animation may end with the 3 frames that the next animation starts with).

Thanks a lot for looking into these less often used features.