Dead Throttle - extreme lag? ... dangerous!

[sVWatt]

Hi,
has anyone else had this intermittent problem since having both the DSG software and turbo shim/spacer upgrade;

I thought it was my imagination until my wife borrowed the car and mentioned the same concern. Twice when taking off from the lights, ive had zero response from depressing the throttle. Pushing it much further down eventualy caused the car to move and then surge as the turbo spooled.

I thought it was a one off until it happened to me a second time - in second gear, slowed at a give way, pressed peddle to merge with traffic and it felt like the engine had died - the car coasted out onto the main road. I pushed the throttle hard to the floor and it seemed like seconds past before power returned. The car behind clearly had to brake to accomodate me.

Needless i am going to the dealer for a check, but want to know if anyone else has experienced this?