SoundSmith is MI, go for it, at least you don't have to bother with re-tipping, you can get SoundSmith with user replaceable stylus or Peter will replace it for you for the lowest possible cost as the manufacturer.
It will never happen with MC if you will not ship them to the manufacturer, the cost will be much higher.
It will never happen with MC if you will not ship them to the manufacturer, the cost will be much higher.