When asking for technical help at the very least let us know the version of firmware you are running.Cliff's Calibration (Mapping) Guide is a MUST READ: http://www.vemssupport.com/forum/index.php/topic,97.0.html
Do you mean launch control with the intention of building boost on the standstill or antilag for maintaining boost between the gearshifts?With ball-bearing turbochargers both are not recommended as this ruins ball-bearing turbos way faster than normal driving and regular journal turbos are not that sensitive though it shortens their lifetime also.I've used launch on few drag cars, boost builds up nicely.
There are people using it, trouble is they're not always around over weekends so it might take a day or two in order to get an answer.