I think i may have noticed a bug : MXXX crashes reaper and usine on my system if i try to load the settings > midi settings panel. OS is win 7.
I notice MultibandGranular only has two voices, well maybe the granulator in MXXX could be the same with just two voices.
In the end, i realised it's better to adapt the grain size to the sound you want to achieve with each voice, so i end up using two instances of the granulator instead of using the 4 voices of one granulator. I don't know if other people feal the same way ?
I was hoping for the hold function in the delay, a sampler/looper is really the thing that i miss the most in MXXXX at the moment.
Well i guess it's preset building time now !

