Use SDK8 (updated version of http://www.virtualdj.com/addons/2050/Flanger_HQ_.html )
Available on :
Sound Effect plug-in for Virtual DJ. Sends BPM and audio-related information to Pangolin software such as QuickShow and BEYOND. Allows you to create precisely synchronized shows
To define your own crossfader curves.
This is not an effect but this video plugin helps you to follow the video memory (VRAM) used by your computer.
Pad Macro Recorder/Player