[closed] Unterschiedliche Abstände der verschiedenen Tabellen Arten

\documentclass[11pt]{scrreprt}
\usepackage[top=2cm,left=3cm,right=3cm,bottom=4cm]{geometry}
\usepackage{graphicx}
\usepackage{tabularx}
\usepackage{booktabs} %für schöne Linien in Tabellen
\usepackage{paralist}           
\usepackage{tikz}
\usepackage{longtable}
\usetikzlibrary{mindmap,trees}
\usetikzlibrary{matrix}
\usetikzlibrary{decorations.pathreplacing}
\usetikzlibrary{positioning,shadings}
\newcolumntype{L}[1]{>{\raggedright\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{C}[1]{>{\centering\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{R}[1]{>{\raggedleft\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}

%----------------------------------------
\begin{document}
%----------------------------------------
\label{tab:BLS}
\begin{longtable}{@{\extracolsep{\fill}}|C{1.6cm}|C{3.5cm}|L{10.5cm}|}
\caption{Calculated single load sets} \\
\hline
\textbf{Id} & \textbf{dfg} & \textbf{fdsg} \\ \hline \hline
\endfirsthead
\multicolumn{3}{c}{(fdgfdg)} \\
\hline
\textbf{fdg} & \textbf{fdg} & \textbf{dfg} \\ \hline \hline
\endhead
\multicolumn{3}{c}{(To be continued)}
\endfoot
\endlastfoot
1 & 66fdFx & \\ \hline

3 & 669\_dfgFz & \\ \hline
... & ... & ... \\ \hline

\end{longtable}

%--------------------------------
\end{document}