Difference between sticking your Jab and pushing

[Tha Greatest]

U wanna know how u dont push ur jab??
Go hit the heavy bag
do like 3 rounds with NOTHING but jabs

double jab triple jab body jab etc.

u will build lot of endurance so in a fight u won't push it and it will be really strong and fast jab

[Shaolin Bushido]

Isn't the differnce basically the speed it's popped out there and retrieved?

That's what I've always thought.

[Speedy Gonzales]

I thought the difference the wasn't just the speed, but also a quick, powerful, snap

[Speedy Gonzales]

Ya I'm intersested in what people say about the way tehy jab. Also, i heard a lot of jabs aren't really "punches" (no force behind it, just speed), but fakes in order to see the opponent's reaction and later to set up combos.

What do you think?

Also, can anyone answer my question about if most jabs (in and average fight) were feints or set-ups and not "main punches" like Ali did. I KNOW they can be used this way, but I just heard most of teh time in reality they are feints.