Patchworx 61 - Techno Synths is a really useful tool for the users of Massive.
The collection of the 64 presets has a nice ratio of synth patches (percussion, bass, synth leads and pads) that are ready to use.
The sounds are inspiring and they are definitely a good addition for your Massive, especially since they come complete with macro controls that enable modification of various parameters.
I highly recommend this pack!!