Curious to see what you think of that. Gave it an attempt when they first came out, gave up shortly. The drag in the overdrive felt horrible, despite a clean and faced install. Worked as advertised, but the drag was too much to put up with.

It's what ultimately led me to stick with the 1x setups, as I just ended up leaving it in the low all the time, and shifting up/down the cassette more.