I think current flat pedals with proper concavity and pins, coupled with "stealth" rubber or similar high friction soles have closed the gap considerably.
The above test didnt prove anything in my opinion. The clipless vs flats debate is just too rider subjective. I prefer clipless because i like that connected feeling to the bike, especially in the rough, i dont worry as much about my feet coming off the pedals. I also read somewhere that flats rider body position is alittle more rearward biased, and i like riding more neutral or slightly forward of neutral.
- Bike Checks