Watch the following two videos. They depict the evolution of ring routines throughout the years. Find the latest ring routine that you think you can get to someday! Of course, many of us will not have the facility to do the swinging elements, so, if you like, you can make your selection based on strength elements.
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I think my strength elements will top out around 1988 or 1992. But I'm not confident that I will get a straight planche on the rings. So, maybe 1988 or 1992 with a straddle.