I hate to answer a question with a question but are you concerned the artwork is going to peel?  I would tend to think that the lip will make it uncomfortable if you are resting your arm/wrist on the panel.  Some people opt for a smaller thickness for the control panel and add plexi on top to protect the artwork.  The combined thickness works out to 3/4 of an inch.   If your panel is already 3/4 of an inch you can offset the slot for the t-molding and accomplish the same thing...just round the bottom edges.