Senior Member
Join Date: Dec 2008
Location: Damascus, MD, USA
Posts: 1,294
Bikes: Neilpryde Nazare, Storck Scenero G3, Colnago Extreme Power, CAAD 10, Bowman Palace R, Strong Custom Foco Steel, BMC SLR01, BMC ALR01
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As with other responders, I regularly alternate between mechanical SRAM Red and Force, Shimano Ultegra and 105 and SRAM Red etap. After the first 100 meters up the road from my house, muscle memory kicks in and adaptation is automatic. Only very rarely will I miss a shift, having momentarily confused which group set I am operating. No problemo.