Question Adapter for Bosch EVS "Colt"

This is my favorite router for doing hand-held routing. I have long wondered why it is popular with other hobby cnc machines, but little support or chatter in the Stepcraft world. I was thinking of trying the DeWalt 611, as they can be purchased at a reasonable price, so ordered the (on sale) adapter from my USA Stepcraft distributor. Surprise! I was thrilled when I tried to fit the Bosch PR20EVSK, and it is a perfect fit (70mm). Curious to know if others have explored and found this alternative spindle.