Cary, something to be mindful of is that extra blue-bandit you put in is between the side plates of the RW. There is a potential for this to wedge in between the side plates and actually keep it from engaging. I would recommend that it is beefed up so that it can't fit in between the side plates instead rests right underneath them.
This is a greater concern with the zk-1 where the side plates are further apart. You don't want it to become wedged in between the side plates and cause it be become stuck in the neutral position.
Hope thats clear.