You could try the method that others have suggested - first with the grain, then (relathered) against the grain. If that still isn't enough, you could go a third time (relathered yet again) against. They key would be to use little pressure and let the blade do the work.
Clearly going one time only against the grain isn't going to work for you any more than it does for me.
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Cogito ergo spud -- I think, therefore I yam
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