It seems that most of the people in this threads talking about NLS drive NA cars... and cars under 500whp.

Honestly, I don't see much of a point NLS'n on a NA car... at all. The main purpose is to reduce transient lag between shifts due to loss of boost from closing the throttle body. Also, the more power your cars, the bigger your turbo probably is... and the bigger the turbo, the harder it is to NLS but also the more beneficial it is. NLS is super easy on low power cars because it takes awhile to travel through your whole rpm range and your tach rises at a consistent range... try NLS'n on a car that goes from 5k to 9k before you can finish blinking and you'll realize it actually is a lot harder than you think.

Moral of the story?... another reason why automatic's are faster in a straight line. =D