AnimationMontage always at 30fps frame display?

Hello,
Is it possible to use animation montages at any other framerate than 30 fps?
I’m aware of the Timestretch curve Sampling rate setting, but that doesn’t solve it…

I use montages because I have animations that have a start up phase that goes into a looping section. We use 24 fps for our animation style and since montage stretches them to 30 fps, I cant get perfect loops, eg frame 70 in 24 fps is frame 87.5 in 30 fps. Make sense?

Anyone else that have run into this?
I can think of a few workarounds but anyway…
Thanks /// Mattias