Hello! I am new to cgc collecting! I am familiar with collecting cards that are graded such as PSA and BGS. So the concept of cgc is not hard for me to grasp. However, I have purchased my 2 first comics on ebay from two different sellers. One cgc case is separated on the seam on the right side of the case, but the top and bottom corners are sealed. On the other cgc case both sides are separated and not sealed. On both, all corners and tops and bottoms are sealed. Both sellers had thousands of positive feedback. Just wondering if it is common for the sides to not be sealed. Both don't seem that it would be possible to get a comic in or out of the cases. Not enough of a split, and tight. Thanks for any help. Have a good day!!!