Does anyone know the best/correct way to put in your t tops? After dropping in, are you supposed to push them all the forward or all the way back? Thanks.

 

To the center, drop, latch.

 

They should be centered, dude.
If you have that much play towards the front or rear, you can remove the interior trim from your A pillar and sail panel to reach the t-top mounts and adjust them for better fitment.

Usually, you should insert the t-top into the center piece at a very slight angle, push toward the center of the vehicle and then lock them into place with the handle on the t-top itself.