While I had a Ric, it had one of those. It didn't when I got it. I tried it with the cover, and that was OK, since I'm already used to playing a P with ashtrays and a Thunderbird with ashtrays. But, I liked the Ric better with out it. It was an aesthetic thing for me. The hole around the pickup looked unfinished and cheesy to me, so I put in the flat version. It was a huge improvement to my eyes. My fingers liked it, but liked it less than my eyes did. My thumb floats most of the time anyway, so no need for a tug bar or thumb rest. Occasionally, a finger style picking finger would tangle with the raw edge of the bezel before the filler went in, but that was such a rare occurrence that it wasn't a primary reason to get one.
That Ric is still floating around somewhere. It's a 1998 with a really dark Fireglo finish that could almost pass for a reddish sunburst. I haven't seen another like it, so when it pops up on Reverb, I recognize it right away. It was a very nice one, but for some reason, nobody seems to hang onto it.