DD's name is Rachelle (pronounced Rachel though - blame my ex for the extra letters) which is routinely shortened to Rach or Rachie. Never ever ever to Chelle, Shell or Shelly. Not the sort of thing to go on a birth certificate though, plus I regularly use her full name including middle name and not just when she's in trouble as well.
This one, well his prospective first name is easily shortened and probably will be, but I like the shortened version. I have discarded other names because I dislike what it gets shortened to (Lachlann in particular springs to mind, love Lachlann, hate Lachie). Nicknames and shortened versions are something I think it's important to consider when naming a child, whether you can live with a particular shortening or not given the tendency of people to do so.

