Just noticed this thread, I recently posted on this issue. I'm not sure what to do either, by far the RF's are heavy AF and I find it noticeable in performance and sportiness. They did come in handy though when I caught a nail and slow leak over the summer. I'm running Non RF's in winter with a lighter rim, can really feel the diff. It's a great question though, from what I can tell, RF's are just not performance oriented.
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