Jasper Base Plates
I put one of these on my Bosch 1617 so I can use PC guides. The plate went on and the HF guides fit well. However, the bits are not centered. As my skill level is minimal I'm not too concerned at the moment but it does give me cause for concern, especially since I can't use the smallest guides on the appropriate bits.
I'm still having problems switching between the fixed base and the plunge base. Makes me wonder about putting this on CraigsList and getting something newer.