Jo, I am with you on supporting the c***sucking Chicoms, but sometimes you just gotta look at how much 5.56 and kipper snacks you can buy with the $250 you save by purchasing a $13 master cylinder.
The Chicoms only get to add 2-3 bucks to their bioweapon projects on one of their master cylinders vs. at least $100 to the Wehrmacht when I buy the Motorrad part.
Update on my retrofits: Right now I have done 5 of them, and they are all working well with absolutely no issues. The first one I did, on my K75RT, now has a bit over 30,000 miles and is still able to stop the bike at parking lot speeds without the front brakes. There are no issues whatsoever with bleeding/flushing, and except for this thread coming up every so often, I never give the rear brake a thought.