Silly boy. Looks like @TCC has already done it.
I'd say around 30%. Strava's drag-coefficent graph (currently in beta mode) is showing a substantial increase in turbulence combined with a loss in velocipedal momentum compared with last week's Rapha-clad ride. Lesson learned, I'd say.Andy decided to finish in Honjo (mainly due to the fact that he wasn't wearing his Rapha jersey this week. Everyone knows that a Rapha jersey gives you a performance gan of at least 20%. I'm sure he won't make the same mistake next time).