Just my experiences... 175 gave me saddle problems, or so I thought... the saddle was actually fine and it was dropping down to a 170 crank that smoothed out my pedal stroke and resolved the issue. Im 6-2 so I thought 175 was reasonable, but apparently not. I can touch my toes etc, so not an outlier in terms of flexibility either.
Just my experiences... 175 gave me saddle problems, or so I thought... the saddle was actually fine and it was dropping down to a 170 crank that smoothed out my pedal stroke and resolved the issue. Im 6-2 so I thought 175 was reasonable, but apparently not. I can touch my toes etc, so not an outlier in terms of flexibility either.