This time I searched the web for free overdrive, distortion and amp modulation plugins.
Here is a quick look into the aspects that we take into account when we chose the best stereo widening plugins. GSnap from GVST is still a solid contender for no-budget plugin users. Its improved amplitude ADSR is very suitable for slow pads. But you can also get more complex panning with PanCake. Smooth transition when changing rate with no crackles, rattles or distortion.