The multiplication by four damages both playing and betting accuracy.

> The "new" zen does not really
> require a 1/4 deck resolution. As indicated
> in BIB (p. 86-87), the counter need only
> determine the number of full decks remaining
> (With less than 4 decks remaining "some
> players may want to make a chart of
> denominators in half-deck increments, but I
> doubt that it's necessary.") This
> full-deck divisor is then
> "artificially" inflated by
> multiplying it by 4. The reason for this
> appears to be a way to convert a True Count
> directly into the percent Advantage (or,
> more accurately, change in percentage from
> the off-the-top disadvantage)to facilitate
> betting.