Hi Jethro,
Sorry for the late reply, I don't visit these forums very often as they are US based and not of great relevance to me as a UK dealer. Anyway in answer to your question, no I had never considered mounting mine to the celing, I am perfectly happy with them in the position they are in right now. However I don't see any reason why it woudn't work just fine in your situation. The Wafers really are superb sepakers, especially the Wafer 2s.