Thanks for the link. You have different molds & different inlay sizes and similar laminate. 2 of those 3 design elements are different from denomination to denomination.
I think that ideally all 3 should be the same and yet when whoever designed the HSI's had every opportunity to make the inlays the same size, they chose not to.
Your set works & even though it might be slightly better with all denomination being the same, it works as it is. You see the same thing is casinos too. More than 1 chip of the same denomination in play. Entirely different looking chips etc