Newton would be better if it was a bit higher and it had pull/push AI.
If the cannon (?) was a bit higher than the ground, the newton would lift the unit off the ground, while pulling it, then it would switch to push when the unit is over it, giving it much more momentum and shooting it at an angle away from the ground and backwards compared to where the unit originally came from. I would be fun to use...
Unless you hit your own singu with an enemy skuttle....
Or as Anarchid said, gun could be lower to push and higher to pull.
Behold my epic drawing skills
[Spoiler]The green is the base and the spire, blue is the gravity gun when pushing, orange when pulling, and violet is the rotation axis.
The gun would simply rotate on the rotation axis when switching modes.
We just need a fancy model do to this :E