The PHIGS it really depends on which yours is some are hard and produce nearly zero slurry other will slurry right up
The Arkies are a good playground for slurries
The lapped Spyderco UF is another good playground
There are few threads on here about using Frosted Glass/Glass you need to search them out
Personally I feel the Go20k is a finisher in it's own right that doesn't need anything but a steady hand but hey go play in the mud see what you find :)
Here is a guy doing just that :) http://straightrazorpalace.com/honin...k-refresh.html
Of course after he posts that is is working for him he is told why it isn't :(