Updating particle mass during simulation

Hi,

I'm trying to update particle mass during simulation by connecting a slider to the mass input of the Kangaroo particle element. Somehow it does not seem to update, only when resetting the simulation it uses the new slider setting. Anyone experience with this? Should this normally work?

I'm trying to simulate a flexible kite and it accelerates and steers very slow with the standard particle mass, but it needs the higher mass during the first iterations for the spring elements to settle...