The manufacturer in China has finally made some ER11M adapters and is sending me one free to test. I told him I would buy three if I liked them. (Recall: they are $15 each including the nut and wrench but no collets)
I am hoping he will put them on ebay for anyone to buy. It seems to me he could sell quite a few. (My real hope would be for LHR to take over the idea sell them as a machine accessory. To that end, I have not yet told the manufacturer that they are for the CW machine.)