I changed the laser puzzle in the pit and added grates to the walls.
Therefore you can't take the Reflector Cube with you and use it instead of the Weighted Cube.

You can't leave the pit, without solving the laser puzzle first and while inside the tractorbeam, the ball won't float up until it reaches the top of the test chamber.

Just some Fixes. Relocated the jumps, so you don't crush into other elements anymore.

I just rewired the Button and added the Laser Barrier in front of the Exit.