Originally Posted by
marmot
I've been interested in this topic since last winter. I found that my low-end Shimano brifters present no problems at all, even when I wear thick, bulky ski mitts, thanks to the thumb-trigger design, which seems superior for cold-climate use. I'm not sure why more expensive shifters use the double paddle. It just looks more awkward to me, with or without gloves.
Shifting from the drops doesn't work well (or at all) for most people with the Sora type thumb trigger. Campy did a better job with theirs.