after 10 years, my sram red etap left me. The rear derailleur seems died and I've discovered that plenty of sram red etap electronic derailleurs have died over time. I am considering ltwoo er9 and wheel top eds to replace it, but I am wondering about the reliability of these groupsets. Considering also the counting failures that I'm reading here, would you recommend such groupsets? I am also tempted to go back to mechanical shifting...