Well, not today, but yesterday I decided to finally switch back to clipless on the fixed gear. I've had the spare MTB pedals for a long time, I originally took them off to put on the road bike until I got road cleats for the original 105 pedals that came with the bike. After I got road cleats, I put the 105s back on and never put the MTB pedals back on the FG because I didn't have shoes for them, but I bought some casual MTB shoes from nashbar for $20. They have been sitting in the box for like 4 months until yesterday, and man I'm an idiot for not switching back sooner, I forgot how much fun a clipless setup on a FG is. I just feel like it makes the experience of riding a FG 100x better.