I'm considering setting up my bike with the I-spec mounts, but have concern that I won't be able to position the shifters where I want them. Can anyone who's using them give me an idea of how much side-to-side position adjustment you have?

For reference, I'll be running M785 brakes and a 2x10 setup. This is going on a new bike build, so I don't have the shifters yet.

Thanks!