During the first road ride on my Specialized Sequoia Elite I had a few times where the chain dropped between crank rings while shifting from a smaller to a larger ring. It's my first time using this kind of shifter. So, my question is: do you think it's me or the adjustment of the shifter? Perhaps I'm not pushing the shifter far enough? I'm not having any problem with the small lever, going from bigger to smaller. So, again, do you think it's more likely my shifting technique or a problem with the shifter adjustment?

Thanks, Nicole