In my younger years, I canted my saddles ever so slightly right to accommodate a dress left bias. I also use to bend saddle rails on the left, iirc.
Many years later after a professional fit, the fitter lowered my saddle position about 3-4 mm. I thought maybe it was due to being older and less flexible. Regardless, for 6 years now, I’ve run my saddle dead straight ahead and no longer bend rails.
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Keep the chain tight!