I'm using the tikz-timing package to create a bus timing diagram:
\begin{tikztimingtable}[timing/slope=0.5]
DT & 2D{}12D{}1D\\
CK & [H] 1H2{6T}2T\\
\end{tikztimingtable}
Now it occurs that the slope of D{}D is twice as long as the slope of T. That is in a way logical, because T is only one character (is that the reason?), but I now want a neat way to get the slopes even long.

D{}Dare two characters andTis just one. As Qrrbrbirlbel's answer shows different slopes are used for different types of transitions. This was done by me (the package author) by design. TheDtransitions are double as long by default because the resulting cross would be too narrow IMHO otherwise. TheZtransitions are only half, because the Y distance is only half either. – Martin Scharrer♦ Jan 9 at 16:23