I'm currently building an endurance road bike and am considering clipless pedals. Is there any practical disadvantage to going with a 2-bolt cleat instead of a traditional 3-bolt for road use? I suppose it comes down to stiffness vs. walkability of the shoes. I really like that the 2-bolt cleats give you the ability to walk without difficulty (as the cleat is often recessed into the sole of the shoe), but the 3-bolt will be stiffer and more efficient at power transfer.
I'm not a pro, I'm not a racer, but I ride about 300 miles per week and do 2-3 "paceline" group rides per week. I'd like my set-up to be as efficient as it can be while still being practical. The 2-bolt system seems like it would be just fine, but what say you? Thanks in advance for the feedback!