Originally Posted by
Vasilis
I wouldn't say that knowing how to hone knifes or chisels is so much different from honing razors, nor that it counts for nothing.
Someone with enough experience knows what a bevel is, how stones feel and what stone progression is, probably knows how not to use too much or too little pressure, as there are knives and tools delicate enough to require less pressure, what overhoning is etc.
All those are very important for learning how to hone razors, and will save a lot of time.
What I wouldn't recommend is, razors with flaws, like some gold dollar razors with very thick shoulders that touch the stone before the blade does, or frowns, as breadknifing is somewhat rare for knives. Anything that shouldn't be there on a razor, you probably wouldn't be able to find it and know what to do.
The better the condition of the razor, the easier it will be.
And, on your first razors, be prepared to remove more metal than is necessary. That's something you learn from experience with razors only.