The new wheel was not available when the qp1r was originally developed and developed down the line when work was being down on the next generation of Questyle players. Ideally the qp1r wheel can just be simply upgraded but the problem is that in making a new wheel that there were changes made in the new batch that may not be possible to upgrade on existing units.
We are toying with a number of ideas but certainly if current owners want to throw some suggestions out I would be happy to try to pass it along.
The situation is certainly a bit tricky and while we, Questyle, can't make any promises right now we are certainly having a lot of meetings with the engineering team discussing the matter.
I can understand the problems of upgrading thousands of units. I'm happy with mine. But, if the change of internal parts improve the sonic signature, I'd be interested in a possible path to switching up the parts. But, I'm not in a big panic about it. I just love the whole concept of the unit right down to the vibrational response, letting me know I activated a button. I really couldn't ask for more.