Only the 44mm A Mold has a smooth inlay... the 39mm inlay will be textured. As stated above you can use any size inlay on any chip with the exception of 44mm chips... only 7/8" inlay can be used on those. I had a 1" inlay used on the jockey mold even though 7/8" is recommended... they came out great!
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Also, depending on the mold used, the inlay texture will not be consistent. I have some A mold and H mold samples, my customs on the jockey mold and each chip within each mold has varying degrees of texture... some are course, some are smooth and some are in between.