POSES INTERFERENCE / HANDS INTO BODY

Hi all,
I have a challenge in Daz 4.9 and I have tried many things to solve it but I am not sure to have any valuable solution so far.
I want to create different animations with exactly the same pose and shaping properties applied to a Genesis 2 male the 3 first seconds, and then a slow transition to any other animation. (Always the same G2M or G2F). What I did so far is I set the pose and shape as I wanted for the 3 first seconds and then saved them as presets. Presets work, I can start a brand new scene and apply pose and shape and it is great. But as soon as I put other presets following the first ones, arms positions get mixed up and start penetrating the bodies when they should be just close to it. Do you have an idea of why this is happening ? Please help :)