When i first purchased my gts i had the same problem. I would have to give it an extra hard push on one side to get that side to fully latch.
Your rubber stops might be adjusted slightly to high not allowing the hood to fully latch when pushed down. To properly adjust them start by lowering like 2 full turns.
Then cut two strips of paper and have someone hold them on top of the rubber stoppers while you shut the hood.
The paper strips should be able to freely pull out.
Next open the hood and redo that process each time raising the stopers by a half turn untill the paper gets stuck between the hood/stopper and can not be pulled out.
The goal is to get the stoppers to just contact the hood with a slight amount of pressure.
Also, when shutting the hood, i like to smoothly push the hood down untill it gets to the latching point, then give it a firm/swift push down to engage the latches.