Question on double jab

[Sandman1995]

Is there anything good that comes out of double jab like 1st jab full jab, 2nd jab come like halfway then pop it back inbetween their gloves? or is it just better to bring it back to guard and fully extend it everytime,
basically what im asking is, whats an example of a situation where you do the quick double jab,
and the power double jab

[greynotsoold]

That isn't easy to answer because it varies. Let me ask this: What do you think there is to be accomplished by jabbing twice? In general I would strongly advise against against anything "halfway" with the jab. Because if you pop the first one and try to "halfway" the second, he'll catch the first and counter you off the second.
It is all about your reason for what you do, and what you think your opponent will do in response.