I recently won this auction: http://cgi.ebay.ca/ws/eBayISAPI.dll?...1735&rd=1&rd=1
and I'm anxiously awaiting its arrival.
I just went out and picked up a Norton 4k/8k to practice my strokes, and in seeing the effect* this stone had on the practice razor I started to wonder...
How badly can poor stone technique mess up a blade?
How many trips to the sharpening stone (poor and/or pro) should a good blade be able to take before it shows marginal wear, how about gross wear?
How many before the blade is a write off?
*I've had a lithide barbers hone for a while now and have been using it for touch ups. Comparing that to the 4k is like comparing a nail clipper to a wood chipper.