I posted this first in the commute forum by accident.
This morning's commute was 32 and an old problem resurfaced.
Rapid fire shifters. The front shifter will not grab the cable only when going from the middle to the big ring. It's like the shifter's not attached to anything. If I do it repeatedly and coax it by slightly lifting up on the lever I eventually get it to grab. This is only in cold weather.
The cables are new. That was the first thing I tried.