No all just looks the same right now I think the 2 coats would just help with durability. I focused on all the lower parts first when doing the second coat( lower wings, doors, sills, rear bumper etc) as I figured these would benefit the most from the second coat as they are usually the areas were I find the beading dies first with any LSP.
I would just say go with the 30ml and get 1 good coat on and just do what you can with what's left as to be honest I don't know how much benefit a 2nd coat gives.
If I get a year out of EXO behaving like this I will be over the moon as it would be no bother to get some more and re coat the car with just EXO. It's so easy to apply, I actually find application way easier and less time consuming than my last method of protection which was Soft 99 Fusso Coat and I was applying that every 2 months or so.