Drum Kit question

[brucerez]

Hi,

I am trying to add my own kick and snare to a preset Standard drum kit.
I created a Drum voice through YEM with only my custom kick and snare and saved it as a Pack.

I imported the pack into my keyboard and added my own Kick and Snare to a Standard drum kit (in Style Creator, Drum Setup), sounds correctly.
I saved the style through Style Creator.
But when playing back the kick and snare go back to the default one.

I am not sure if this is the right way for creating a custom drum kit.
What is the correct way to add a custom Kick and Snare to a preset drum kit?

Any help or guidance would be appreciated.

Thank you