Definitely true, but, as other posters have mentioned, watch the rake! While 2/4 is good practice, moving up just one or two limits to 3/6 or 4/8 makes it a lot easier to stay ahead of the mountainous rake, particularly (so I hear) in the midwestern casinos.
For more totally helpful hints about 2/4 check out this informative article by a poker genius on ESPN.com
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