I have a tikz graph with bend arrows and somehow tikz draws the arrow annotation (in my case just numbers) on the arrow. This happens a lot more often when the arrow is bend. It seems that tikz has no knowledge of where the annotation is with respect to the arrow. I have the self-contained code below. What I want is that annotations are above the bending and also I want to have a minimum distance (in pixel?) to the arrow that I can control. Is there something like that in Tikz?
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{arrows}
\begin{document}
\begin{tikzpicture}[->,>=stealth',shorten >=1pt,auto,node distance=2.5cm,
thick,main node/.style={circle,fill=blue!10,draw,font=\sffamily\Large\bfseries}]
% nodes
\node[main node] (A) {A};
\node[main node] (B) [below left of=A] {B};
\node[main node] (C) [below right of=A] {C};
\node[main node] (D) [below right of=B] {D};
\node[main node] (E) [right of=C] {E};
\node[main node] (F) [above of=E] {F};
% lines
\path[every node/.style={font=\sffamily\small}]
(A) edge [bend right] node [right] {0.0} (B)
(B) edge [loop left] node {0.0} (B)
edge [bend right] node [right] {0.0} (D)
edge [bend right] node[right] {0.0} (C)
(C) edge [bend right] node [left] {0.0} (A)
edge [bend right] node [left] {0.0} (B)
edge [bend left] node [left] {0.0} (D)
edge [right] node [right] {0.0} (E)
(D) edge [loop below] node {0.0} (D);
\end{tikzpicture}
\end{document}