Quote Originally Posted by velodog View Post
I've never had issues reaching the shifters, I imagine that you'll just have to adjust to something new. The thumb shifters may not be at the tip of my thumb, but all I need to do is drop my thumb off the hood and push. When in the drops I may have to reach a bit, but I've never really thought about it till now. I don't know, maybe I have larger hands.
It took me a bit of getting used to and once I did, no problem at all. Mine (Record 10 speed) can shift up/down multiple at a time with ease and I like it.

As for the hand size and thumb reach when in drops, it has more to do with the bar drop dimension. I wear medium to large gloves depending on the brand but reaching thumb shifter when in drops has not been a problem at all and my bar drop is 128mm.