Quote:
	
	
		| 
					Originally Posted by blinkwatt
					
				 What is this?  Do I need to do it for street driving? | 
	
 
Of course you do not, but if you want to increase your driving experience and skills...then next step is heel and toe  
 http://en.wikipedia.org/wiki/Heel_and_toe
 
http://en.wikipedia.org/wiki/Heel_and_toe
More seriously, if all of this is well executed, it's much smoother on downshifts.
Note that robotized gears boxes such as M3's SMG II blip the throttle by themselves.