You don't need to specify the XSL at this stage, because the Transformer has already handled that (and, in fact, it's compiled that XSL, so you couldn't change the stylesheet if you wanted to).

But if two wanted to use the same transformer, there could be a problem, says Phil Gott, director of Automotive Science and Technology at IHS Global Insight.

The guide does not state if a Transformer model is good or bad from a business perspective, nor if the resulting powercube will be efficient.