I printed it with your profile and everything but the finish on top ain't that good. Somehow you can see the infill through the top although the top shell layers are set to 5.
I would increase it to 10 and it should be no issue at all. Other than that, thank you for the model.
Very nice model – 5 Stars. The print was flawless but for the wall between the in the "I". If printing again, I would edit the model to either open in another layer or open the base layer in some regions to have better access. Even the 6.5mm wide LED strip I used was a lesson in patience. :-)