Gravity modules and logic

I've been trying to make a two-way gravity tunnel which involves the use of logic. The problem is that gravity modules do not work if there's anything between the initial activation module and them. I would like them to be able to be used with logic.

Right now this works:



This does not:



Logically you'd figure they'd be identical. With regards to anything else in the game, they are. Gravity modules in...

Gravity modules and logic