Originally Posted by
DaveW
If you're using a truly good stone, it won't matter if you use one hand or two, and it won't matter if you use a little too much pressure. What's more than a little? Anything that flexes a razor and leaves you with something other than a uniform bevel under a microscope (flexing during the "fast" work will leave a bevel that looks like it's been taped even though it hasn't).
Excluding the people who spend their time trying to break anvils with rubber hammers, I'd imagine that most of the shortcomings in honing are: doing too much of it and not knowing when to stop (which can still yield a good edge, but can wear out a razor pronto) and doing too little of it and not completing the job. The rest of the stuff isn't as important as it's often made out to be. Two hands or one hand should never make a difference (to someone who is willing to practice), especially in the age of abrasive powders.
The one place that I'd prefer one hand, but it may not even be required there, is with barber hones where you generally don't want to use them all the way to the razor edge because most of the vintage types are quite coarse until you get into the swaty, norton, #00 type stuff.