Welcome z71!! I joined for this thread at first too and now find myself all over the whole forum!!! Another question for me and my new X-01. When placing the spinner wheel on, I have seen/read some conflicting things on which way it should be placed onto the machine. Does the snap-ring end face towards the ground or ceiling when mounted? Also, I am using 100/50 for my son now. Would the next logical step be to a 90/75 to try and get a bit more speed/glide and a bit less bite? I am still trying to figure out all this new stuff in regards to sharpening and the angles and such. Thanks!! Also z71, For me being new at this too, I have left the pitch knob alone as suggested and had pretty good success so far. I have only done a few pairs of skates, but it seems to work to just adjust the front and back knobs for me.