I made a couple of batches of glass platens and all of the glass plates had such chipping along the edges. As a result, I eventually realized that they were causing most of the deep scratches I was seeing in my bevels. My plates were a full inch wide, so the 3/4″-wide strips didn’t cover the raw edges and I had to sand and polish out all the sharp edges on the glass.
With Wicked Edge platens, which are 3/4″ wide, your strips should cover the edges fairly well. If the edges are polished so as to eliminate any possible scratch producers you should be OK. The “divots” in your photos are quite a bit smaller than mine, so I think Clay is right. Try them out for awhile and watch for scratches. The divots are a normal result of cutting glass with the scribe and crack method. The (more expensive) alternative is probably to use a diamond saw.
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