Not so much that the stone is too fine as the stone may be a gentle cutter.
There are ultra fine Asagi that cuts very fast. Often but not always they will have orange tones in them (yake) that are reminiscent of a sunset on the sky blue Asagi.
Making a slurry with a diamond plate will mix the yake particles into it giving strong cutting power.
Some of the faster ones can remove 4k & even 2k scratches.
Oh ! & Congrats to Jimmy . Are the pics up yet ? :p :)