I thought I'd post this because I constantly read about 6MT drivers mis-shifting the 2-3 and 3-4 in the 1/4 mile. There is a specific way you need to hold your hand when shifting gears. This will greatly reduce your chances of hitting gates and missing gears. This is how professional drivers shift gears.

1-2 shift
Hold the shifter pistol grip style and pull directly back. Easy enough.

2-3 shift
With your palm, place it BEHIND the shift ****. Your finger should wrap around the right side of the shift ****. Your wrist should be at a 90 degree angle. Use palm of your hand and push forward. The shifter should easily slide into 3rd.

3-4 shift
Invert your hand so that your thumb is pointing down. Wrap your hand around the front of the shift **** and pull directly back. You'll hit the 3-4 everytime.