Conditionally change Node Label offset

Got a custom icon registered and working (it's size is wider and has less height - 48 x 16).
whether it's possible to change the x & y label offsets ONLY for nodes with that icon.
It seem to point this being controlled by Node.js->content->view->props->y value
How to conditionally set this for the node subset.

Would recommend to use standard size for all objects, but went ahead and prepared an example : http://codepen.io/NEXTSUPPORT/pen/dXBdzK?editors=0010

The code extends the node class by overriding the implementation of "calcLabelPosition" method.