How many of you guys have actually driven a real race car with a glide? I've driven at least 4 of them capable of ET's from mid 8's to very low 10's and they all left hard with the wheels in the air. The advantage comes from not having the huge torque multiplication of the low gear in a 3 speed which you really only need for a heavier car. Without it the car is much less likely to spin the tires netting you better consistency and that is the name of the game in most any drag racing with the exception of the pro classes, but even still it has a place there too.