Funny thing is, on my "commute preview" ride last Sunday, I forgot to downshift from the 50T to the 34T on my crankset before stopping at a left turn stoplight. So when the light turned green, there was an embarrassing delay as I struggled to start rolling on my 50T. The driver behind me didn't honk but just passed me - I think shifting my bike to the right side of the lane helped there.

I'm not enough of a stud to start from a dead stop on a 50T. Well, I'd rather not do it on the road with cars behind me, anyway. . Nobody is going to give me a medal for starting from a dead stop at a road intersection with my chain on the 50T - they're more likely to give me grief instead. It doesn't take that long to start rolling on the 34T and work my way up to the 50T anyway.