1995 Acura Integra putting on the tranny

Hi there-

from a complete stop putting on the tranny (in first) the car will hiccup like its going to die, in all other gears its fine.

I tested this out and it turns out it happens when the car is just started up and once warmed up if I let off the clutch before 1.5 rpms

It doesn't feel like its slipping but it does feel like a pretty good shake-

it is not a as bad of a shake as if you are coming to a complete stop and didn't put your clutch in so the car doesn't die