yea same maybe time to cancel that subscription 
  
normally it will cut the fuel and spark 
  
the likes of '2-step' (not the dance) will just cut the spark and dump all the unburnt fuel into the exhaust or turbo if you have one   
  
and do this  
  
 
  
  
now Regarding the Z and drifting, for me at least im comparision with my s14 the gearing is to close on the 1st/2nd/3rd for me anyways which is why im looking into adjusting the final drive  
  
but i wouldnt say the rev limiter just stops you drifting