Originally Posted by
Utopian
I take this to mean that the OP has not ever honed a straight razor.
He has given no indication of any honing being done.
I have no idea why working with slurry would be considered to be the first means of trouble-shooting for honing that is not working. Though in this case honing was not done.
That's why they are called oilstones. If they ever have been used with oil, then water would simply bead up and be pushed off of the hone with the first stroke of the blade.
I'm not aware of any oilstone that works with slurry. What oilstone have you used with a slurry?
What problem with what lapping stone is solved thick oil?
I have no idea what this means.