Y Carriage Bearing Holders

The RepRapPro Huxley which I built almost a year ago came via the Indiegogo campaign which I believe followed the eMaker campaign for the first generation of this design in the summer of 2011. Since then, I noticed on the Wiki that the Y-carriage had been turned upside down. This is a great design improvement in my view as it provides a more stable support for the heated bed - less chance of 'wiggle' and less chance of the bearing holders breaking as a result of brute force and ignorance when re