The problem with that is that it all depends on the pen thickness you use when you place the line and not when you create the symbol line type.
So the thinner the pen you will use when placing the line the more lines you will need in your symbol line creation.
You could also add a small vertical line at the start and end of the 'dash' just to neaten the ends up a bit.
Barry.
One of the forum moderators.
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