I'm not sure about offsetting sharpness, it's more about making sure all parts of the edge get a consistent go on the hone so that there's not one area duller than another. Assuming, of course, that the razor is flat on the hone. One of the things that reassured me when I started was that the spine creates the right angle for the edge, so that simply lying the razor on the hone is all you need to worry about in that regard.
It's the moving the razor smoothly and evenly and lightly while keeping both the edge and the spine in contact with the hone that can get tricky.
Also, a lot of guys use an X pattern (see randydance's avatar, or pictures in the library of this site). I do, mainly because my blades are wider than the hone, but the cutting angle on an X pattern seems to work too. This can also be a bit tricky initially because the tip and the heel take turns at not being on the hone, whereas the middle part of the blade pretty much is always in contact. But it's not as major an issue as you might think, so long as you concentrate on keeping the blade flat on the hone at all times. Using two hands, one at the heel and one at the tip, can help here - just be careful if you do use two hands to be aware of the potential extra pressure you might be imparting.
James.