My Small(light) objects dont seem to behave correctly when applying force

Hello,

I have an issue with small scale physics objects not seeming to act correctly, or move in the correct direction.

Setup:
I’ve rescaled the default white boxes(309KG) down to a few weights for scaling forces to be used in game to 8KG, 1KG, 0.2KG and 0.1KG
i’m using “apply force” 10 times per second (i have an 0.1 second delay under event tick) and applying a force of 200 (divided by the number of detected objects)

Problem:
At such low force, the objects all head in one direction, regardless of the vector applied.
when i crank up the force, then the objects behave correctly when applying the force in various vectors.
The problem there is, i may have a small key, being well under 0.1KG that i want to push or pull, so applying a huge force is a really bad idea.

Youtube link:
[link text][1]

Screenshot of push code

i would appreciate any feedback :slight_smile:

Not even a hint?