I'm a stick shift fan and optimising the driving experience is important to me - I've raced up the quarter in my youth but these days I circuit race. As a 'purist' I hate aero and electronics that 'argue' - so I don't like traction/stability control and I don't like ABS.

Facts:
- Shift time is valuable in any contest - strip or circuit.
- Means of uninterrupted torque shifting have been available to quarter milers for decades. You can only do it UP the stack but not down with these boxes.
- Smooth isn't just comfortable, it's quick.

- A ZeroShift box is no quicker than boxes with over-driving sprags at the strip because some of them already 'zero shift'.
- Being lighter and less power-hungry than a slush box, a ZeroShift car would have a weight and available power advantage over an auto/torque converter set up.
- ZeroShift can replicate the most mechanically efficient and light quarter mile boxes up AND DOWN the stack - and it's SMOOTH.

The last few posts question whether ZeroShift detracts from or spoils the driving experience/skill.
- All our early tests with the ZeroShift box were done WITHOUT any controls.
- With practice you can approximate what our FlatLiner electronics do with your feet on the clutch and gas pedals - but you have got to be right on top of your game to coordinate with a ZERO time shift. Basically, you've got a sub-30ms window to dance in tune with your shift hand.
- A few of us got pretty good at it but it distracts you from your driving so the electronics are there purely to sort it out.

ZeroShift traction controlling features:
- The fact that ZeroShift 'traction controls' between gears is a function of FlatLiner maintaining output torque across the shift. That assumes you had traction before the shift. If you didn't you wouldn't have it through or immediately after either.
- If you opt for the FromZero launch/creep/hillstart system that replaces the clutch pedal, it's not strictly traction control: it's acceleration control. As we all know, a bit of slip at launch aids optimum time. FromZero optimises ACCELERATION which is not the same as traction. FromZero is an OPTION.
- If you overcook it into a corner (or provoke oversteer), if you want to break traction in gear by kicking the gas pedal just before the cams come in or the turbo boost arrives, or you hit the NOS button in a low gear, nothing we make will argue with the consequences.

IMHO, the need for driver skill is not diminished but performance is enhanced.